Salomon S-Lab Ultra-Glide Review: A Cushioned Trail Shoe for Long Days Out

Introduction

The Salomon S-Lab Ultra-Glide is the French brand’s take on a long-distance trail shoe: highly cushioned, softly comfortable, and built around hours on your feet rather than short, aggressive efforts. It arrives with a 41 mm stack height, a four-piece midsole construction, and a pressure point mapping concept that Salomon claims reduces fatigue on longer runs. On paper, it is one of the more interesting trail shoes available right now. The real question is whether all that engineering translates into a better experience out on the trail.

Specs and Construction

The Ultra-Glide uses a 41 mm stack height at the heel with a 6 mm drop, leaving 35 mm under the forefoot. Its midsole is built in four pieces. The layer closest to your foot is a PEBA top layer using Salomon’s Energy Foam Plus, the same foam used in its road racing shoes such as the S-Lab Fantasm 2. That top layer sits inside a carrier made of two interlocking EVA blend foam pieces, which cradle the PEBA insert rather than forming a simple bathtub.

Those interlocking carrier pieces do two jobs. Each side creates a tall sidewall that locks in the ankle and limits lateral movement on uneven terrain, an approach Salomon has used across both its road and trail lines. Underneath, the outsole features what Salomon calls reliefs: extra-large dimples that reach up into the midsole, creating calculated pressure points intended to relieve fatigue in specific areas of the foot. A Contagrip outsole wraps over the whole structure, with 4 mm lugs in a multi-directional chevron pattern for bite and grip in both directions.

The upper gets a nearly full neoprene tongue and Salomon’s signature lace system with a lace garage. This version of the lace garage is a genuine improvement: the laces feed in beneath the top layer, so tucking them away is seamless, avoids the bunching at the top of the ankle that older designs caused, and leaves the shoe looking neater. Total weight comes in at 300 g or 10.5 oz.

Fit and Sizing

The fit runs true to Salomon’s usual trail sizing. There is solid volume through the midfoot and plenty of toe room up front, though the upper can pinch a little at the pinky toe, a common trait of Salomon shoes. If you have worn Salomon trail shoes before, stick with your normal size. If your feet swell significantly late into long races or all-day outings, consider going up half a size. The heel padding is comfortable, with no rubbing or irritation around the Achilles during extended wear, and the upper should gradually mold to your foot over time.

How It Runs on the Trail

Comfort is the headline. The PEBA top layer feels surprisingly soft and plush the moment you put the shoe on, and that cushioning carries through the run. Thanks to the combination of the Energy Foam Plus top layer and the firmer carrier beneath it, the ride never feels mushy: it stays lively and bouncy while still absorbing long-day fatigue.

Tested across snow, sand, and rock, the Ultra-Glide gripped well in all of them, and it was enjoyable both power hiking up inclines and sprinting down dirt and paved descents. Compared with other S-Lab shoes, this one feels less like dancing over terrain and more like barreling through it. The wide footprint gives the shoe a sense of heft. It is more pickup truck than rally car.

The trade-off shows up in very soft or mushy ground, where the extra plushness and width make the shoe feel less nimble than other S-Lab trail options. It performs at its best on firmer material, where the ground pushes up against the PEBA top layer and the cushioning really works. Over long hours, the pressure point reliefs did not feel dramatically different, but the PEBA layer is doing the heavy lifting, and the shoe remained genuinely comfortable for extended wear, with the lace garage offering quick adjustments as feet swelled through the day.

Things to Consider Before Buying

At $250, the S-Lab Ultra-Glide is priced as a premium race product. It is fun, fast, and versatile, well suited to long races and all-day adventures, and it handles a wide variety of terrain with ease. But if you are not regularly racing long trail distances, that price may feel high for what you actually need. The soft PEBA midsole is also better matched to firm ground than to deep, soft terrain, and the roomy footprint is less agile than some lighter, lower trail shoes.

How the Alternatives Compare

Two shoes make natural alternatives depending on what you ride and what you want to spend.

The Adidas Terrex Agravic Speed Ultra targets similar terrain, slightly less technical but with longer stretches of open running. It uses Lightstrike Pro with Energy Rods to bring a road super shoe feel to the trail, and its shorter lugs at 2.5 mm in the front and 3 mm at the heel signal that intent. Like the Salomon, it uses PEBA in the midsole, so it also favors firmer ground. The main difference is lateral support: the Salomon’s ankle sidewalls are far more robust than the Adidas’ modest heel cup, and the Salomon sits higher on the ankle to keep out dust and debris. The Agravic Speed Ultra retails at $220, about $30 less.

The Hoka Mafate Speed 4 offers a very similar all-around feel. It has even deeper 5 mm lugs and a wider footprint, especially in the heel, and suits the same kind of mixed-terrain, long-duration use. The decision largely comes down to fit preferences: if you want the ankle support, sidewalls, and higher collar of the Salomon, along with that PEBA top layer, choose the Ultra-Glide. If you prefer to save money, the Mafate Speed 4 retails at $185, and certain colorways can be found discounted to as low as $148 direct from Hoka.

Buying Advice

Choose the S-Lab Ultra-Glide if long trail races or all-day mountain adventures are genuinely on your calendar and you value plush cushioning with lively response. Its ankle support and collar height are real advantages for technical, dusty terrain. If your trail running leans toward faster, less technical routes and you want a more road-like ride, the Agravic Speed Ultra covers similar ground for less money. And if versatility and value matter most, the Mafate Speed 4 delivers a comparable experience at a substantially lower price.

Conclusion

The Salomon S-Lab Ultra-Glide is a comfortable, cushioned, and versatile trail shoe that shines on firm terrain and long days out. Its four-piece midsole, improved lace garage, and grippy Contagrip outsole make it a strong premium option, but its $250 price makes sense mainly for runners who will genuinely use its long-distance strengths. For everyone else, the Adidas and Hoka alternatives offer compelling ways to get similar capability for less.