Whether you’re training for your first 10K on the trails or gearing up for an ultra in the mountains, having the right kit can make all the difference. From hydration vests and soft flasks to lightweight shorts and durable footwear, this guide covers our hand picked selection of the best the trail running gear and accessory essentials – tested, trusted, and updated for 2025. If we haven’t used it, it’s not in the list. Every item in this roundup has earned its place through real miles, rough terrain, and long days out. If you’re putting together your first trail running gear setup, or simply upgrading for 2025, consider this your go-to checklist for functional, reliable gear that actually holds up when it matters.

Note: This post contains affiliate links. If you buy through them, I may earn a small commission at no extra cost to you. It helps keep the site going, so I really appreciate it!

Best Hydration Vests for Trail Running

Best Hydration Vests for Trail Ultras (50K to 100K and Beyond)

Salomon Active Skin 8

Why we chose the Salomon Active Skin 8?

Salomon pioneered the modern hydration vest, with Kilian Jornet winning UTMB in a prototype back in 2009. While they command a pretty penny, they’re dependable, race-tested, and backed by years of R&D.

The Salomon Active Skin 8 has become a staple in my long-distance trail running kit. Lightweight at just ~210g, it offers a snug fit with zero bounce and smart, efficient storage. What makes it stand out as one of the best hydration vests for trail running is its ability to evenly distribute weight, making it feel almost invisible during longer efforts.

There’s space up front for two 500ml soft flasks, along with two quick-access stretch pockets and a zipped pocket perfect for your phone, gels, or other essentials. On the back, it’s compatible with a 1.5L hydration bladder and has enough storage for your mandatory ultra running kit. It even features a key clip and five pole-carrying options, demonstrated here by Salomon.

Salomon Active Skin 12

Why we chose the Salomon Active Skin 12

Building on the Active Skin 8, the Salomon Active Skin 12 hydration vest offers an extra 4L of storage — bringing the total to 12L — making it a strong choice for trail runners tackling ultra distances of 100K and beyond. While the two Salomon hydration packs share a similar design, Salomon have added an additional zipped pocket to the front — an upgrade I’m personally keen on. What’s more, the storage capacity of the 12 does offer greater long-term flexibility if you decide to scale up the ultra distances or fancy tackling multi-day events. With this much capacity, you’re unlikely to run dry whatever your next ultra running adventure entails.

Harrier Kinder 10L

My partner had been borrowing my Salomon Active Skin 8, but she wasn’t too keen on the closure system. The issue was amplified by the fact that the vest is sized appropriately for me, not her. So when it came to getting her own hydration vest, we shopped around. I’d recently heard good things about Harrier, a UK Trail Running company focused on providing high-quality trail running clothing and equipment at reasonable, mid-range prices. We took a punt on their Kinder 10L vest and my partner could not be happier.

She tells me the vest fits perfectly (check out her full review of the Harrier Kinder 10L). There’s absolutely no movement, which means no chafing. That extends to the soft flasks — no jiggle whatsoever. There’s bucket loads of storage (obviously, as it’s a 10L vest). While I haven’t personally worn the Kinder (too small for me), I have given it a good examination. The materials are unbelievably high-quality. Soft to the touch. It punches way above its weight. It feels like a vest that should cost twice as much as it does. Top marks for Harrier.

If you like the look of the vest or any of Harrier’s lineup, the good news is we’ve partnered with them to offer readers 10% off (which makes this vest even better value). Click any of the links (like this one) or enter code GRITTY10 at checkout.

UTOBEST 10L

Why we chose the UTOBEST 10L

For those who want a trail-ready hydration vest but don’t want to pay Salomon prices, the UTOBEST 10L is hard to beat. With a layout similar to those employed in the Active Skin range, it’s comfortable, functional, and impressively versatile. It’s packed with safety features, like the inbuilt whistle and reflective strips, and overall I personally feel it’s one of the nicest looking vests available. You also have the option of purchasing the vest in combination with its specifically designed hydration bladder, so no faffing around trying to select one that fits. For those seeking a companion for long days (and nights) on the trail, why not take along the UTOBEST 10L? We think it’s suitable for distances up to 100K.

Best Hydration Vests for Short Trail (and Road) Runs & Training

UTOBEST ALLITE

Why we chose the UTOBEST ALLITE

For runners taking a minimalist approach, the UTOBEST ALLITE is the standout budget-friendly option. It doesn’t boast the high storage capacity of other hydration vests on our list — but that’s intentional. This vest is designed to be lightweight, breathable, and efficient, offering enough space for a 500ml soft flask up front, along with multiple well-placed pockets for essentials like gels, your phone, and keys.

While it’s not built for long ultras, it’s more than capable for short to mid-distance trail runs or for road runners seeking a more convenient way to carry all their fuel and hydration needs. If you’re looking for simplicity, affordability, and convenience, the ALLITE delivers exactly that.

And, if you decide in the future that you need more storage, you can always check out these storage-ready trail running shorts.

Hydration Vest	Best For	Storage Capacity	Hydration Options	Price
Salomon Active Skin 8	50K to 100K Trail (or Road) Running Ultras	8 Litre	2x 500ml Soft Flasks & Bladder Compatible	££
Salomon Active Skin 12	50K to ~100 Mile Trail (or Road) Running Ultras. Possible Multi-Day Use.	12 Litre	2x 500ml Soft Flasks & 1.5L Bladder Compatible	£££
UTOBEST 10L	50K to 100K Trail (or Road) Running Ultras	10 Litre	Soft Flasks & Bladder Compatible	£
UTOBEST ALLITE	5K to 25K Trail (or Road) Running Events or Training	~5 Litre	1x 500ml Soft Flask	£

Hydration (Running) Vest Final Thoughts

If you’re looking to add a hydration vest to your trail running gear, the best one is the one you’re actually going to use! So, pick wisely. We’ve provided some great options. Choose the one that fits well, that’s reliable, is in budget, and has a capacity that meets your trail needs.

Best Soft Flasks for Trail Running

It might seem a bit much to give soft flasks their own category, but trust me — once you’ve actually used a good one, you’ll understand. Running is already hard enough without carrying an uncomfortable rigid bottle or playing finger gymnastics with a floppy flask that slips through your grip by mile two. Anything that makes the run even 5% more comfortable is a win in my eyes.

Best Handheld Soft Flasks

Why I Love Them

I’ve tried pretty much every kind of running water bottle out there. While ergonomic grip bottles are affordable and more convenient than your standard sports bottles, nothing comes close to a handled soft flask. They’re lightweight, comfortable, and, importantly, collapse down as you drink – taking up less space in your vest, belt, or shorts as the miles stack up. There’s quite a few different types to choose from, but these are my current favourites.

Hydrapak Skyflask

I’ll keep this short — mostly because there’s not much to explain. The HydraPak SkyFlask is, quite simply, a 500ml soft flask with a handle. That’s the magic. There are two versions: the one I use (an older model) and a newer release with a slightly refined handle. Supposedly more ergonomic. But honestly? I’ve never found the original uncomfortable. Personally, I’d go with the cheaper one — but hey, you do you.

Salomon Active Soft Flask

My partner recently purchased the Salomon Active Soft Flask, so naturally I’ve taken it out on one or two of my recent runs. It’s very similar to the HydraPak (especially the newer model, as the handles are very similar) — both bottles sporting a 500ml capacity — but there are minor differences.

• Salomon’s soft flask uses a bite valve that activates as you drink — no twisting or turning, and virtually leak-proof.
• Hydrapak’s Skyflask features a twist-to-unlock cap, which might be a minor inconvenience for some runners, though in practice it’s easy to use and very secure.

TRIWONDER Carry Case Flask

Again, it’s a 500ml flask with a handle — but there’s a key difference. This TRIWONDER flask is more of a flask-in-a-carry-case. The benefits? There’s a zipped pouch just big enough to stash a couple of gels, your phone, or a card for that all-important post-run cake and coffee.

TRIWONDER Strap Flask

Not a fan of the carry-case design? TRIWONDER also offer a more minimal option, closer in style to the HydraPak or Salomon — a soft flask with removable straps.

Best Filter Flasks for Mountain Miles & Remote Trails

If you’re anything like me, you spend a good chunk of time planning — and getting overly excited about — new routes. I’ll often map out a long run in a (relatively) remote spot, only to realise: “Wait… where am I going to get water from?” Sure, with a Salomon hydration vest, I can carry a decent amount — and I always bring as much as I think I’ll need. But what if the conditions change? What if you suddenly need more water than expected?

That’s where these soft flasks with built-in filters come in. They’re lightweight, take up basically no space, and give you a little extra peace of mind when you’re out on the trail all day. There are a few to choose from, so which should you throw into your pack? Here are two trail-tested options.

WaterWell™ Foldable Squeeze Travel Filter Water Bottle 500ml 

The WaterWell portable filter bottle removes 99.9% of waterborne bacteria and parasites, so you can safely fill up from rivers, lakes, taps — even sketchy puddles, if it comes to that. While I haven’t pushed it to its limits (yet), WaterWell says the filter can handle up to 1,000 litres, making it a cost-effective and sustainable option.

It might not be on every trail runner’s essentials list, but for me, it’s an easy, just-in-case addition to the pack — especially for big days when things might not always go to plan.

Best Soft Flasks for Your Hydration Vest

Is there really such a thing? That all depends on the hydration vest you’re wearing, doesn’t it? Some soft flasks pair better with specific brands — Salomon for Salomon, UTOBEST for UTOBEST, Inov-8 for Inov-8. That said, a few options stand out for their quality and ease of use. Here are a couple we genuinely recommend.

Salomon Soft Flask 500ml

Salomon’s 500ml hydration vest soft flask impresses for the same reasons their handheld does — the convenient, easy-to-drink-from bite valve system and the excellent flow rate. It delivers fluids quickly and smoothly, sometimes perhaps a little too well (keep an eye on how much fluid you’re taking in or you might run out sooner than expected — it happens). Naturally, they’re designed to integrate seamlessly with Salomon vests, and this is arguably the best way to achieve that comfortable, bounce-free fit.

SWIFTER 500ml Soft Flasks

Although the Salomon flasks are really good, they are on the expensive side. SWIFTER’s 500ml soft flasks (you get two in a pack) employ a similar bite valve to the ones used in the Salomon flasks, so it’s just as convenient to take on fluids while out on the trail. Even better — they’re half the price (and that’s when the Salomon are on sale!) They’re not as long and narrow as Salomon’s offering (which might be a plus depending on the vest you’re using), so weight won’t be distributed quite as well (but really, the difference is likely to be negligible). For their price and Salomon-like features, they’re quite unbeatable.

Harrier Soft Flask with Straw

Irrespective of the vest you choose, Harrier’s 500ml soft flasks are a great option — with or without the straws. We love that you can bundle the two together, though. I’ve often found myself needing straws as an afterthought and struggled to find ones to fit the bottles I’ve purchased. Harrier, thankfully, had a little more foresight, so you can buy their flasks with or without. They’re one of our partners, too. So you’ll get 10% off your purchase when you click through using our links (or enter code GRITTY10 if that doesn’t work).

Soft Flask Final Thoughts

There’s an abundance of soft flasks available today. Choose the one that optimally fits your hydration vest, or, if you’re running naked (not literally, just without a vest), pick the most comfortable handheld one. Just with hydration vests, the best soft flask is the one that doesn’t just join a pile of unused trail running gear you bought on a whim. It’s the one you pick up time and time again — the comfortable, convenient, easy-to-use addition that helps minimise the excuses.

Best Trail Running Shorts with Built-In Storage

More storage? Surely not. But here’s the thing — some people just don’t like hydration vests. Honestly, I totally get it. Even though I’m personally fond of them, there are days when they feel a bit extra. Overkill, if you will.

Thankfully, some clever individual had the wise idea of building a pair of running shorts with an integrated running belt. If you’re questioning whether that really does sound like a wise idea, let me tell you — I wasn’t sure at first and had many questions. Wouldn’t they feel uncomfortable? Wouldn’t the items bounce around? Would your valuables really be secure? I’ve tried and tested a few pairs, and I’m pleased to say – they’re excellent.

Perfect for warmer days, shorter efforts, or bolstering your storage options on race day — here are my favourite trail running shorts with integrated storage.

Trail Running Shorts with Integrated Running Belt

T8 Sherpa Shorts

Who are T8?

T8 are a trail running company based out of Hong Kong. The founders train in Hong Kong’s relentless heat and humidity — and the gear available just couldn’t keep up. So, they set out to create performance apparel that’s lightweight, cooling, chafe-free and super functional for hot weather running. 

Why I Love the T8 Sherpa Shorts

Some days, a hydration vest feels essential. Other days — especially when it’s warmer or the run’s a bit shorter — it’s a relief to travel light. That’s where these shorts come into their own.

When I picked up a pair of T8 Sherpa Shorts, I was hoping for enough storage to carry a phone, a soft flask, and a couple of gels — plus somewhere secure for a house or car key without worrying it might fall out. But when they arrived, I had doubts. They looked so compact and felt so lightweight, I wasn’t convinced they’d actually hold it all, let alone do it comfortably.

Thankfully, they proved me wrong.

Despite their minimalist look and featherweight feel, the T8 Sherpa Shorts offer surprisingly secure, bounce-free storage. I typically carry a soft flask, phone, gels, and keys in the integrated belt — and still, it’s the closest I’ve come to feeling like I’m running in the nude. In the best way possible.

These are, without question, some of the best trail running shorts out there for long runs where you want to carry the essentials without needing a vest.

Built from super-light, sweat-wicking fabric, they’re designed for serious comfort. One thing to note: the Sherpas are unlined, so you’ll want to pair them with compression shorts or running underwear. T8 recommend their own “Commandos” underwear, but any snug-fitting layer will work just fine. After seeing how lightweight the shorts were, I decided to pair them with the T8 Commandos, which market themselves as the “world’s lightest full-leg running underwear,” weighing in at under 40 grams. I don’t know if that claim is accurate, but they are seriously lightweight, and seriously comfortable.

There are plenty of other options for running underwear that we love. One of those — Runderwear — are solely focused on making running underwear (and accessories) that are comfortable, light, and anti-chafe. My personal favourite for men’s running underwear is this pair of seamless boxers. Supremely comfortable and zero issues with chafe.

Note: T8 are based in, and ship from, Hong Kong. Shipping to the UK took an impressive two days, so don’t let their location put you off. Additionally, as T8 state, they use Asian sizing — so consider sizing up.

Compressport Trail Racing 2-in-1 Shorts

If the concept of the T8 shorts appeals to you but you’d prefer a 2-in-1 setup with integrated compression shorts, the Compressport Trail Racing Shorts are a premium alternative. Like the T8s, they’re impressively lightweight at just 110 grams and offer a generous amount of storage. One edge they have over the T8s is the addition of a zipped pocket at the back — a handy feature for those who value a little extra security.

While the key clip on the T8s has never let me down, the added peace of mind from the zipped pocket might be worth the slightly higher price tag on the Compressport. And, when you factor in that the T8s are unlined, the price difference is minimal.

Kiprun Run 900 Ultra-Carbon

While the Kiprun Run 900 Ultra-Carbon from Decathlon doesn’t quite have the same ring to it as “Sherpa Shorts”, don’t let that deter you from what is otherwise an exceptionally good product. No need to go into too much detail — they perform the same job as the others. If you’re looking for an affordable entry into trail running shorts with integrated running belts, these are hard to beat.

Best Trail Running Socks

Sometimes, it’s easy to forget the little things. We might spend hours or even days researching our next pair of trail running shoes, only to use the most basic pair of socks. But in my experience, a good pair (or several if you’re running ultras) of trail running socks can make all the difference. They play an integral role in protecting your feet from blisters, so they’re maybe even more important than a decent pair of shoes (though, don’t tell my partner that).

I’ve tried a lot of running socks, and there’s three things I look out for: durability, comfort, and blister-proofing. Here are a few of my top picks.

Most Durable Trail Running Socks

When it comes to trail socks that go the distance, durability matters just as much as comfort. These options are built to withstand serious mileage without sacrificing performance.

Darn Tough Socks

Darn Tough socks are made in Vermont, USA. Sure, they’re not cheap — but to earn the name, each pair comes with a lifetime guarantee. If they wear out, tear, or develop holes, Darn Tough will send you a replacement. No fuss.

I’m a huge fan of their business model: make a sock that’s comfortable, high-performing, and built to last. Back it with a lifetime guarantee to maintain quality standards. Earn loyal customers. It’s sustainable — in more ways than one. The longer a product lasts, the less we need to produce, replace, and consume.

To deliver on that promise, Darn Tough uses a blend of premium materials. These running socks, for example, are made from merino wool, nylon, and Lycra® spandex. They’re soft, breathable, sweat-wicking, and — well — darn tough.

When I started putting this list together, there was never any doubt about who’d take the top spot in the sock department. No other brand I’ve tested comes close in terms of durability. If that’s your top priority, these are the only socks I recommend.

Runderwear Anti-Blister High Sock

I could have placed these in the most comfortable running socks, the best anti-blister socks, and, as I have, the most durable trail running socks — they’re really that good.

The Anti-Blister High Socks are made of a double-layer technical fabric to reduce friction and eliminate rubbing. Runderwear even go as far as to guarantee their 100% blister-free comfort. In my experience, they’ve hit the nail on the head. After countless miles in them, I’m happy to report zero, nil, zilch in the dreaded blister department. Obviously, thanks to being double-layered, they’re not the thinnest socks. Runderwear do have you covered in that department, too, with their Ultralight Running Socks. But if you enjoy a thicker sock, these bad boys are perfect for when you need a warm, comfortable, blister-proof solution.

As we’ve partnered with Runderwear, if you use any of the above links (or alternatively promo code GRITTY15), you’ll get 15% off all purchases at Runderwear.

Most Comfortable Trail Running Socks

Sure, we might willingly throw ourselves into the pain cave — especially during ultras — but that doesn’t mean we can’t chase comfort where it counts. And when it comes to running, few things matter more than looking after your feet. No matter the distance, good socks make a difference. Here are a couple of recommendations for comfort-first trail running socks.

Bombas

Not only are Bombas socks incredibly comfortable — the company itself is on a mission to do good. As of writing, Bombas have donated over 150 million items of essential clothing to the homeless. I had to double-check that stat myself.

The company focuses on the three most requested items in shelters: socks, underwear, and T-shirts. And for every item you buy, Bombas donates one to someone in need. Simple as that.

I’ve only tried their ankle running socks, but if the rest of their range is anything like these, you’re in good hands (well, feet). They feature a blister tab, left–right contouring, strategic cushioning, honeycomb arch support, a seamless toe, Y-stitched heel, and airflow venting. In short, they’ve thought of just about everything — “not a running brand” or not.

So next time you need a new pair of socks, consider Bombas. And if your partner questions why you’ve added another pair to your already overflowing gear drawer, just remind them you’re supporting a good cause. You’re buying running gear and doing good. Hard to argue with that.

Balega Blister Resist

I’ve been wearing Balega’s Blister Resist socks for some time now, and I’m happy to report: no blisters. But they don’t just shine in that department — they’re also incredibly comfortable.

Like many others on this list, they feature a seamless toe and mesh ventilation panels for breathability and moisture control. A snug band of arch compression adds a welcome touch of support.

Balega offers a wide range of running socks, and honestly, you can’t go wrong with any of them. But if blisters are your nemesis, start with these.

Most Durable Trail Running Shoes

Finding a trail running shoe you love — only for it to fall apart after a couple hundred miles — is frustrating. And expensive. Yes, we put our shoes through a lot out there, but surely there are options built to go the distance?

Thankfully, there are. The shoes in this section are designed with durability in mind. Many runners report getting well over 1,000 km from a single pair — some even more. If you’re tired of early blowouts, these are the models worth considering.

It’s worth noting,

Norda 002

Norda might not be a household name just yet (at least not here in the UK), but they’re making serious waves. Based in Canada, Norda is focused on crafting some of the most durable, high-performance trail shoes out there. Their lineup is deliberately tight — just four models: the 001, 002, 003 (more of an approach shoe), and (breaking the pattern) the 005.

I’ve tested both the 001 and 002, and ultimately opted for the latter. My main issue with the 001 was the minimal cushioning around the heel collar. While that might work for some, I found it lacking for long days on the trail — I wanted more comfort, more support, and less risk of rubbing. Don’t get me wrong, I was disappointed that the 001 didn’t quite work for me, because the Vibram midsole was phenomenal.

The 002 shares the same midsole compound as the 001 — but there’s a lot less of it. And no, “Vibram midsole” isn’t a typo. While we’re all used to seeing Vibram outsoles (in this case, Vibram Megagrip), the 002 also features a Vibram SLE midsole. It was a first for me, and I was skeptical at first — but it’s surprisingly well-balanced. Even with its lower stack height, I found it offered just enough cushion for reasonably long days on the trail.

The upper and laces are made from Dyneema, a material reportedly four times stronger than steel by weight. Pair that with the Vibram components, and it’s easy to see why these shoes are known for their exceptional durability. Some runners report getting 1,000–2,000 km out of a single pair — no small feat.

But that kind of longevity comes at a price — a steep one. The Norda 002 retails at £260. As a Yorkshire lad, I know exactly what you’re thinking. But hear me out: if a shoe lasts two to three times longer than is typical, the cost per kilometre drops significantly. And beyond just the economics, fewer shoes produced means less waste — something that matters to many of us who spend time out on the trails.

Of course, not everyone can justify that kind of spend, and I’m not saying you’re a bad person if you don’t. It’s a privilege to even be in a position to consider it. But if you are, I do think it’s a worthwhile, sustainable option to have on your radar.

Nnormal Tomir 2.0 & Kjerag

If you could choose any professional trail runner to set up a trail shoe company, it would be the G.O.A.T himself — Kilian Jornet. Luckily, the trail gods were listening. Kilian co-founded Nnormal with the intention of balancing performance and durability.

To prove their durability, for the launch of the Kjerag — named after a 1,100 metre high mountain in Norway — Jornet ran over 1000 miles in many of the world’s hardest ultras, including UTMB, in a single pair, winning many along the way.

Not only are they impressively durable, they’re also ridiculously lightweight. The Kjerag weigh in at a feather-light ~200g. For context, all but the most expensive, performance-oriented road shoes would struggle to compete with how light they are.

For those after a bit more stack than the Kjerag offers, the Tomir 2.0 is the moderately stacked option from Nnormal — perfect for long days on the trail.

Best Zero Drop Trail Running Shoes

Unfortunately, there aren’t too many brands to choose from in the zero drop category. We think this is a real shame, as zero drop shoes really do help build your foot strength, which can prove helpful for logging long miles (surprise, surprise). They’re not for everyone, though. And remember, you should transition to zero drop shoes slowly. Even though they’re more in keeping with our nature, you’ve likely worn shoes with drop your entire life and lost a considerable amount of foot and ankle strength. To avoid injury, start by walking short distances, then gradually introduce some running. Do this, and you’ll find yourself reaching for a zero drop shoe when you’re next heading to the hills.

Altra Lone Peak 9+

As the first pair of zero drop shoes I tested, the Altra Lone Peak 9+ holds a special place in my heart. They’re insanely comfortable thanks to the FootShape (think wide) upper, they provide a beautiful connection with the ground thanks to the reasonably low (~25mm) stack height, and they’re now equipped with the fantastic Vibram Megagrip. If you’re interested, here’s my full review.

Altra Mont Blanc Carbon

The Mont Blanc Carbon is Altra’s answer to the trail super shoe. It features both EGO MAX and EGO PRO in the midsole, as well as a flexible carbon plate. The combination of foams makes this Altra’s peppiest shoe, though, make no mistake, the Mont Blanc Carbon isn’t going to be as propulsive as your typical road super shoe. At ~29mm, it’s a little higher stacked than the Lone Peak, but it’s also a fair bit narrower. If you want a fast(er) zero drop trail shoe for your next ultra race, there’s little that can compete with the Mont Blanc Carbon. Except, of course, the Mont Blanc Speed.

It’s worth mentioning the Mont Blanc Speed for a number of reasons. The first is, it’s significantly cheaper than the Mont Blanc Carbon. Next, some people have heel slip issues in the Carbon, which the Speed somewhat rectifies. Finally, it’s essentially the same shoe sans plate.

Best Trail Running GPS Watches

When it comes to GPS watches for trail running, there’s a number to choose from to suit all distances, but only three I can currently recommend from a future-proofing perspective: Suunto, Garmin, and Coros.

Before the Apple diehards grab their pitchforks — let me say, I’m a big fan of the brand. I use their devices daily and love the ecosystem. That said, the Apple Watch — Ultra included — simply isn’t built with endurance athletes in mind. It’s a smart device first, fitness tracker second. And the battery life? Frankly, it’s not up to the task. Sure, it’s likely fine for everything up to marathon distance. But for anything longer, especially 100K+, it’s a stretch unless you’re finishing near the front of the pack.

If you’re considering races beyond 50km — or long training days in the mountains — these are the GPS watches we recommend.

Best GPS Watches for Ultra Marathons

These watches excel in battery life, mapping, and multi-day reliability — whether you’re tackling a 100K, 100 miles, or just want to wear your watch more often than you charge it (sorry, Apple).

Suunto Vertical Solar

Let’s start with the headline spec: even in its highest-accuracy GPS mode, the Suunto Vertical Solar delivers up to 85 hours of continuous tracking (or 60 hours for the non-solar model). Switch it into Tour mode — which reduces GPS precision and disables heart rate monitoring — and you’re looking at a staggering 500 hours of battery life. Those numbers alone put it in serious ultra-running territory.

That said, it’s worth noting that those figures rely on optimal sunlight for the solar variant — and in the UK, we know that’s extremely unlikely. Still, if we take the 60-hour figure for the standard version, that’s more than enough for most people to get through all but the Cocodona 250s of the ultra world.

Beyond battery life, the Vertical is loaded with features designed specifically for long-distance and high-altitude trail adventures:

• Dual-band GNSS for pinpoint GPS accuracy, even in challenging terrain
• Offline outdoor maps you can use without a phone or signal
• A bright, 1.4-inch touchscreen display with durable sapphire glass

And, as the name implies, it’s made for elevation: there’s 3D maps, barometric altimeter, and a clear focus on vertical gain/loss.

While it’s not the lightest option on the market, the rugged titanium build (on the Solar Titanium variant) is equipped to deal with any knocks or unfortunate falls that are likely to come in your journey as an ultra runner. If you’re the kind of runner who’s often out all day (or multiple days), the Suunto Vertical is our top pick.

Garmin Enduro

You don’t need to read between the lines to figure out who Garmin had in mind with the Enduro. Just like the Forerunner is clearly built for runners, the Enduro is — unsurprisingly — all about endurance. And in that department, the Garmin Enduro (3) more than lives up to its name. Designed specifically for ultra-endurance athletes, it offers a best-in-class 150 hours of GPS tracking with solar (or 110 hours without), and up to 34 days in smartwatch mode. That means it’ll keep going long after your legs give out — and then some.

But it’s not just about battery. The Enduro is packed with Garmin’s most advanced training and navigation tools:

• Dual-frequency GNSS (GPS, GLONASS, Galileo) for top-tier accuracy
• TOPO maps and turn-by-turn navigation
• ClimbPro, showing upcoming elevation profiles in real time
• Stamina tracking, helping you manage your effort during long runs
• Recovery and performance metrics like VO2 max, HRV status, and sleep monitoring
• And even a built-in LED flashlight — surprisingly handy on pre-dawn or post-dusk efforts

Despite its size and feature set, the Enduro remains comfortable thanks to the UltraFit nylon strap and lightweight titanium bezel. It’s rugged enough for multi-day adventures but smart enough to double as your daily fitness and health tracker.

Yes, it’s a premium watch — but if you’re training for long ultras, FKTs, or multi-day races, it delivers serious value over time. No mid-run charging cables, no compromise on accuracy, just dependable performance you can count on deep into the mileage.

If the Enduro feels like more watch than you need, there are more affordable alternatives that will suit the majority of trail runners. I’ve spent plenty of time testing both the Fenix 7 and Epix Gen 2. In fact, the Epix was one of the first GPS watches I reviewed — and honestly, you can’t go wrong with either.

While they’re now considered “last-gen” models, they’ve only been around a couple of years, and not a lot has changed since. The upside? You can often find them at heavily discounted prices. Personally, I’d lean toward the Epix Gen 2 Pro — it offers several upgrades over the standard version and, with deals like this one at 40% off, it’s a much better value than the newer Fenix 8, which brings minimal improvements for a much higher price tag.

Best Compact GPS Watches for Trail Running

Suunto Race/Race S

Up until a couple of months ago, I’d have confidently placed Garmin at the top of the GPS running watch game. And to be fair, they still deserve a spot on the list — they remain leaders in many respects. But a few recent decisions have raised eyebrows.

From limiting software updates on relatively new devices to introducing a paywall (Connect+) for select features, Garmin has sparked concern in the running community. There’s growing speculation they may begin rebranding existing tools to technically uphold their promise that “current features won’t be affected” — though only time will tell.

In contrast, I’ve recently had the chance to test the Suunto Race S. You can find the almost dissertation-length review here. While there’s no obligation to provide a glowing review, using the Race S has genuinely felt like a breath of fresh air. I’ll go into more detail in an upcoming full review (which I’ll link here once live), but a few things already stand out: a clean and responsive UI, intuitive navigation, elegant Scandinavian design, and a refreshing, more user-focused philosophy.

• Dual-band GNSS
• High definition AMOLED screen
• Up to 30 hours GPS activity tracking (highest accuracy) or 120 hours in tour mode
• 100% carbon offset
• Full offline mapping
• HR monitoring, SpO₂ tracking

In my opinion, it’s a perfect, beautifully-designed, well-rounded option for trail runners seeking performance without bulk.

Coros Pace Pro

While perhaps better known for their prowess in the road running world, Coros has a number of options suited to trail runners — especially those who like to analyse their performance.

The flagship model in the Pace lineup, the Pace Pro is a serious contender in the compact GPS watch category. Like the Suunto Race/S, it’s competitively priced for the features it packs.

COROS Pace Pro: Key Specifications

• Display: 1.3-inch Always-On AMOLED touchscreen with 416 × 416 resolution and 1500 nits brightness
• Processor: Ambiq Apollo510, delivering over twice the processing power of the Pace 3
• Battery Life:
  • Up to 38 hours in All Systems GPS mode
  • Up to 31 hours in Dual-Frequency GPS mode
  • Up to 20 days in standard daily use
• GPS: Dual-frequency GNSS with All-Systems mode for enhanced accuracy
• Navigation: Offline global topographical maps with turn-by-turn navigation
• Sensors:
  • Optical heart rate sensor with ECG capabilities
  • Barometric altimeter
  • Accelerometer
  • Gyroscope
  • Electronic compass
  • SpO₂ sensor
• Storage: 32 GB for maps and music

Best Trail Running Caps

VAGA

Originating in the Lake District, VAGA caps seem to be everywhere you look. Their Feather Racing cap is, as the name implies, featherlight (just 35g). They dry quickly, and, most importantly, look great. I can’t remember the last time I went for a run without mine. So, VAGA, if you’d like to sponsor me, you know where you can find me.

Ciele

They seem to take the brunt of the jokes on yaboyscottjurek, but Ciele’s caps, much like VAGA, are not only functional, but exceptionally well-designed.

Best Headlamps for Ultra Running

I’ll keep this section light (pun absolutely intended). Okay, okay — that was a terrible joke. But in all seriousness, headlamps (or some kind of light source) are mandatory kit for most ultra-distance events. While there are definitely cheaper options out there, this is a trail running essential we don’t recommend skimping on.

OLIGHT Perun

I’ve been using the OLIGHT Perun 2 Mini for most of my nighttime adventures. It’s bright at 1100 lumens, rechargeable, and thanks to its nifty design it can be angled any-which-way and even removed from the head strap and used in hand (perfect for use in other situations.) There’s also a red light function for use in emergency situations, so OLIGHT have you covered.

There is now an updated version, the Perun 3, which is significantly bigger (and brighter at 3000 lumens) than the Perun 2 Mini. There’s also the Perun 3 Mini, which is very similar to the Perun 2 Mini, but with a few extra lumens (1250 > 1100). And, for those of you who prefer a more traditional headlamp design, the OLIGHT Array 2 Pro is fantastic.

Ledlenser H19R

If you frequent mountain trails, multi-day ultras, or any trail where a wrong turn can put you in serious danger, then look no further than the Ledlenser H19R. It’s eye-watering levels of expensive, but you can’t put a price on safety. It offers up to 4000 lumens and 20 hours of battery life, so you’re in safe hands for a few nights (unless, of course, you forget to charge it).

Best Trail Running Headlamp Final Thoughts

One of our team uses the Ledlenser, another uses the OLIGHT. They’re both good, but the Ledlenser is definitely far better equipped. It’s not hard to see why when you look at the price difference. If you fancy diving into Ledlenser, they do have some more reasonably priced options, such as the Ledlenser H7R, which for its specification is a solid purchase. It offers a similar amount of lumens as the Perun, but in your more typical headlamp package.

Extra: Best Trail Running Accessories Worth Carrying

• Race Belt: If you want to keep your shorts and belt separate, these standalone belts work best for shorter trail runs where a vest might just be overkill. Try the Salomon Pulse Belt, this nifty solution from Flipbelt, or choose this retro Lava Activ solution.
• Anti-Chafe Balm: Squirrel’s Nut Butter is cult-favourite. Others, such as Body Glide, also do the trick.
• Collapsible Cup: Perhaps less necessary in trail events than road, though they are mandatory kit for some events, a collapsible cup helps keep you on top of aid-station hydration and limits unnecessary waste. There’s a number of options to choose from, such as these from UTOBEST, or these from KitBrix.
• Soft-Flask Straw – Harrier’s set-up allows you to hydrate on-the-move without having to crane your neck or remove the bottle from your vest.
• Portable Powerbank: Unnecessary for all but the longest events and fastpacking. If that’s you, check out these options from Nitecore, and this heavier but substantially more powerful one from Anker.

Final Thoughts

I’m always a little hesitant when it comes to gear roundups. In an age of overconsumption, encouraging you to buy more stuff can feel… off. But every item in this guide has been trail-tested with durability and practicality in mind. I try to live by the philosophy of buying quality once, rather than settling for cheaper gear that constantly needs replacing.

These picks aren’t about trends — they’re about lasting comfort, utility, and helping you get out the door more often. They’re the pieces I personally trust on every trail run, and they’ve made all the difference for me.

Is there such a thing as the “best trail running gear”? Well, in our opinion, it’s the pieces you add to your list and use time and time again. As such, we think it needs to stand the test of time, which is why we’ve focused on durable pieces rather chan cheap rubbish!

Got a piece of kit you swear by? I’d love to hear about it. Drop a comment below and I’ll get round to reviewing it.

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