Choosing the right shoe for a trail ultra marathon is one of the most important decisions you will make before race day. Get it wrong and the consequences compound over miles in a way that a poor choice for a 10k simply does not. Blisters that are manageable at mile 10 become unbearable at mile 40. A shoe that lacks cushioning feels fine for the first hour and destroys your quads by the final descent.
I have run multiple ultras in trail shoes between 30 miles and 60 miles, on rocky, technical, varied terrain with significant elevation. I coach runners preparing for their first ultras and their tenth. I have tested trail shoes across distances and surfaces that most reviewers do not reach. This guide is written from that experience rather than from a spec sheet.
The honest truth about ultra marathon trail shoes is that there is no single best option for every runner. What works for Courtney Dauwalter over 253 miles of Arizona desert may not work for you over 50k of Welsh mountain terrain. Terrain, foot shape, running style and distance all determine the right shoe. This guide covers five shoes that, between them cover every ultra runner’s needs, from elite racing to comfortable long-distance finishing.
What Makes a Great Ultra Marathon Trail Shoe
Before the specific recommendations, it is worth being clear about what ultra-distance running demands from a shoe that shorter trail racing does not.
Cushioning over distance. Feet swell. Joints accumulate impact. A shoe that protects your body over 30, 50 or 100 miles needs meaningful cushioning without sacrificing responsiveness. The balance between the two is where most ultra shoes live or die.
Grip across varied terrain. Ultra courses rarely offer consistent surfaces. Rocky technical ground, wet grass, dirt tracks, boggy sections and hard-packed trail all appear in the same race. Your shoe needs to handle all of them with confidence.
Toe box room. Feet swell significantly over ultra distances, often half a size or more. A shoe that fits perfectly at the start can become painful by mile 30 if the toe box is too narrow. Size up half a size for ultra racing as a general rule.
Durability. An ultra marathon is hard on shoes. The outsole, upper and midsole all need to hold up across many hours of use in demanding conditions.
Weight. Lighter is better over ultra distances, where every gram accumulates across thousands of strides. All five shoes on this page are under 300g.
Comparison Table
| Shoe | Best For | Weight | Drop | Price |
|---|---|---|---|---|
| Hoka Speedgoat 7 | Best all round ultra trail shoe | 272g | 4mm | Around £150 |
| Salomon S/Lab Genesis 2 | Elite racing on technical terrain | 230g | 8mm | Around £200 |
| Salomon Genesis | Best value Courtney shoe | 260g | 8mm | Around £140 |
| Hoka Tecton X4 | Best carbon plate trail racer | 248g | 5mm | Around £220 |
| Altra Lone Peak 9+ | Best zero drop ultra distance | 272g | 0mm | Around £140 |
Hoka Speedgoat 7 — Best All Round Ultra Marathon Trail Shoe

The Speedgoat is the shoe I reach for when the distance is serious and the terrain is unforgiving. I have run 30 miles and 60 miles in Speedgoats on rocky, technical, varied terrain with significant elevation. After 60 miles on ground that punished every foot placement, the shoes still had something left. My feet did not feel the same way but that is the point, the shoe had done its job of protecting them throughout.
The Speedgoat 7 is the best version yet. The Vibram Megagrip outsole handles wet rock, loose dirt, grass and packed trail with equal confidence. The supercritical foam midsole is softer and more responsive than the Speedgoat 6 which matters enormously at mile 40 when your legs are already working hard enough. The wide base provides stability on technical ground when your foot placement becomes less precise through fatigue, which it always does on long days in the mountains.
The 4mm drop suits most runners transitioning from road to trail ultra racing. The toe box is generous enough to accommodate foot swelling over distance without becoming sloppy. Available in wide fit for runners who need more room, see our wide fit trail shoes guide for specific sizing advice.
The Speedgoat 7 is the shoe I see most consistently at UK ultra marathon start lines and for good reason. It handles everything British trail ultra terrain can produce, from rocky Peak District ridges to muddy Welsh mountain approaches, without compromise.
Pros: Best all round ultra trail shoe, Vibram Megagrip handles all surfaces, soft responsive midsole, wide base for stability on technical ground, available in wide fit, proven over 30 and 60 mile distances in testing conditions
Cons: Not the lightest option for pure racing, aggressive lug pattern wears faster on hard surfaces
UK price: Around £140
CHECK SIZES – MENS CHECK SIZES – WOMEN
Salomon S/Lab Genesis 2 vs Genesis 2 — Courtney’s Shoe, Honestly Assessed
Courtney Dauwalter wore the Salomon Genesis to win Western States, Hardrock and UTMB in a single season, arguably the greatest ultra running performance in history. She raced the 2026 Cocodona 250 in Salomon kit. The shoe’s association with the greatest ultra runner alive gives it an obvious appeal, and both models have now been updated to a second version.
But here is the honest assessment that most reviews gloss over. There are two very different shoes in the Genesis 2 range, and the choice between them matters significantly for most runners.
The S/Lab Genesis 2 is the elite racing version. The MATRYX upper, Kevlar-reinforced, is even more durable than before, and the integrated gaiter keeps debris out well. The fit is precise and glove-like. The rock plate protection on technical terrain is outstanding, and the drop has dropped from 8mm to 6mm for a lower, more grounded feel. At around £200, it is a premium product, and it mostly justifies that price.
The good news this time round is that Salomon has actually addressed the old midsole complaint. The original S/Lab Genesis used a fairly flat EVA foam that felt underwhelming for the money. The Genesis 2 switches to a new TPU-based midsole with genuinely higher rebound, and it is noticeably livelier underfoot than the shoe it replaces. It is still not a max-cushion, propulsive ride like a Hoka Speedgoat 7, and it is not trying to be. But the flat, dead feel that used to be the shoe’s main weakness has largely gone.
The trade-off is a small weight increase, up to around 269g for a UK men’s 8.5/9 from 255g in the original, and the wider platform that gives you more ground contact and stability does mean the fit is a touch different underfoot than before, even though the upper’s precise, race-oriented character is unchanged. On technical mountain terrain where precision and protection matter more than propulsion, that is still exactly what this shoe is built for.
The standard Genesis 2 is a different proposition entirely. More cushioning, lower price, wider fit and arguably more appropriate for most ultra runners who are not racing at Courtney’s level. It uses the same outsole and upper philosophy as the S/Lab version but with a more forgiving midsole that suits long-distance comfort over elite racing precision.
The honest coaching advice is this. Unless you are an experienced ultra runner who specifically prioritises the S/Lab’s precision, low stack and lighter weight on technical mountain terrain, the standard Genesis 2 is the smarter choice. It is more comfortable over distance, more forgiving of imperfect foot placement when fatigued, and significantly cheaper.
S/Lab Genesis 2 Pros: Exceptional MATRYX upper, precise elite fit, outstanding rock plate protection, new TPU midsole with genuinely better energy return than the original, integrated gaiter, lower 6mm drop for a more grounded feel
S/Lab Genesis 2 Cons: Runs narrow in the forefoot, not for wide feet, slightly heavier than the original S/Lab Genesis, significant premium over the standard Genesis 2 that most runners will not fully utilise
Standard Genesis 2 Pros: More cushioned and comfortable over ultra distances, wider fit, lower price, same outsole and upper philosophy as S/Lab, benefits from the same midsole and stability upgrades
Standard Genesis 2 Cons: Heavier than S/Lab Genesis 2, less precise elite racing fit
UK price: S/Lab Genesis 2 around £200, standard Genesis 2 around £150
CHECK SALOMON S/LAB GENESIS 2
CHECK GENESIS
Hoka Tecton X4 — Best Carbon Plate Trail Racing Shoe
The Tecton X4 is Hoka’s latest carbon plate trail racer, and early tester reports back up the reputation this line has built. On dry, firm terrain the rebound from the dual parallel carbon plates is immediate, and testers who have run the X3 back to back with the X4 report a more flexible, technical-terrain capable plate structure this time round, without losing that propulsive feel on faster ground.
The caveats are the same ones that have followed this shoe through every version. On softer ground, bog, wet mud and loose trail, the carbon plates are less effective. The energy return that makes this shoe feel electric on hard packed dirt becomes less pronounced when the surface absorbs impact before the plates can respond. On dry technical trail it looks exceptional. On soft UK conditions, expect it to be good but not transformatively so compared to a conventional shoe.
The big change for this version is the fully integrated gaiter, so there is no separate gaiter to fit or fiddle with, and reviewers who found the X3’s setup fussy have welcomed the switch. The Vibram Megagrip outsole now uses a Litebase construction, which trims weight without giving up grip. At around 260g for a UK men’s 8.5/9, it is genuinely light for a maximally cushioned carbon-plated shoe, and several reviewers report it feeling more stable underfoot than the X3 despite the same 40mm stack height, thanks to a wider base and reworked plate geometry.
For ultra runners targeting a fast finish time on predominantly hard-packed or dry technical terrain, the Tecton X4 looks set to be the most capable racing tool Hoka has produced in this line. For runners who race on varied soft UK terrain, it remains compelling but the advantages are less consistent, and this is worth keeping in mind before committing to the price tag.
Pros: Outstanding energy return on dry, hard-packed trail, dual carbon plates now more flexible and technical-terrain capable, integrated gaiter with no separate piece to fit, Vibram Megagrip Litebase outsole trims weight, genuinely light at around 260g, more stable underfoot than the X3
Cons: Carbon plate advantage reduced on soft, wet ground, premium price, not the right choice for boggy UK conditions, more shoe than most beginners need
UK price: Around £230
Note: I have not personally run this pair yet; this is based on early reviews and tester reports ahead of the UK release. I will update with my own trail testing once I have it on my feet.
DISCOVER TECTON 4 – MENS
DISCOVER TECTON 4 – WOMENS
Altra Lone Peak 9+ — Best Zero Drop Ultra Distance Shoe

I have run 30 miles in the Lone Peak 8, the predecessor to the current 9+, and the fundamental character of the shoe remains consistent across versions. This is a shoe built for covering serious distance comfortably rather than racing it quickly. The FootShape toe box allows your toes to splay completely naturally, which over 30 miles and beyond makes a profound difference to foot health and comfort. No black toenails. No blisters on the outside of the little toe. No cramping through the forefoot late in the race.
The Lone Peak 9+ adds a Vibram Megagrip outsole, a significant upgrade from the previous version that meaningfully improves grip on technical and wet terrain. At zero drop, the shoe promotes a natural foot strike that many ultra runners find reduces knee and hip issues over very long distances. The EGO MAX foam provides enough cushioning for 100-mile distances while keeping the shoe light and responsive.
The zero drop requires honest assessment for runners transitioning from conventional shoes. Give yourself eight to twelve weeks of gradual adaptation before racing in zero drop. Achilles and calf loading is significantly different from a conventional drop shoe, and rushing the transition is how runners get injured.
For ultra runners with wide feet, the Altra is the most natural choice on this page. The FootShape toe box is genuinely the most spacious in trail running and accommodates foot swelling over ultra distances better than any other shoe here.
Pros: FootShape toe box best for wide feet and long-distance comfort, Vibram Megagrip outsole on 9+ a significant upgrade, zero drop promotes natural foot strike, EGO MAX foam handles 100-mile distances
Cons: Zero drop requires an adaptation period, less propulsive than carbon options, not ideal for runners with Achilles issues
UK price: Around £140
Which Ultra Marathon Trail Shoe Is Right for You?
Choose the Speedgoat 7 if you want the most versatile all-round ultra trail shoe for UK conditions. The shoe that handles everything from rocky technical ridges to muddy mountain approaches without compromise. The choice for most ultra runners.
Choose the S/Lab Genesis 2 if you are an experienced ultra runner targeting a fast finish on technical mountain terrain and want the precision and lightweight of an elite racing shoe. Be aware of the fit; it runs narrow and is not for wide feet.
Choose the standard Genesis 2 if you want Courtney’s shoe at a sensible price with more cushioning and a more forgiving fit for long-distance comfort.
Choose the Tecton X4 if you race primarily on dry, hard-packed trail and want the propulsive advantage of carbon plate technology. Not the right choice for soft, wet UK conditions.
Choose the Lone Peak 9+ if you have wide feet, prefer zero drop, or are targeting very long distances of 50 miles and beyond where foot comfort over many hours matters more than outright speed.
Frequently Asked Questions
What is the best shoe for a first ultra marathon?
The Hoka Speedgoat 7 is the most reliable first ultra marathon trail shoe for most runners on most terrain. The combination of Vibram Megagrip, generous cushioning and a stable, wide base makes it forgiving of the imperfect form that inevitably appears in the later miles of your first ultra.
Do I need special shoes for an ultra marathon?
Not necessarily special, but definitely appropriate ones. The key requirements for ultra distance are sufficient cushioning, reliable grip across varied terrain, a toe box with enough room to accommodate foot swelling over distance and enough durability to handle many hours of use. All five shoes on this page meet those requirements.
Should I size up for an ultra marathon?
Yes. Size up at least half a size from your normal trail shoe size. Feet swell significantly over ultra distances and a shoe that fits perfectly at the start line can become painful by mile 30 if the toe box is too tight.
Are carbon plate shoes good for ultra trail running?
On dry, hard-packed trail, yes. The energy return advantage is real and meaningful. On soft, wet terrain, the advantage is reduced. Carbon plate shoes are best suited to faster ultra racing on consistent surfaces. For mixed UK terrain, a conventional shoe like the Speedgoat 7 is more versatile.
What shoes does Courtney Dauwalter wear for ultra marathons?
Courtney Dauwalter races in Salomon kit. She wore the Salomon Genesis when she won Western States, Hardrock and UTMB in a single season and raced the 2026 Cocodona 250 in Salomon. Both the S/Lab Genesis and standard Genesis have since been updated to a second version. The S/Lab Genesis 2 is the elite version of her race shoe, and the standard Genesis 2 is the more accessible version with additional cushioning.
How long do ultra marathon trail shoes last?
Most trail shoes last 400 to 500 miles in normal conditions. Ultra racing is harder on shoes than training. The sustained mileage, varied terrain and often wet conditions accelerate wear. Check your outsole lugs regularly and replace them when they start to flatten noticeably.
