Salomon Size Guide: How Do They Fit?
You've spotted a Salomon sneaker and you're torn between your usual size, a half size up, or even a full size larger. This question comes up a lot, and for good reason: the French brand straddles two worlds that fit differently. On one side, you have lifestyle sneakers (XT-6, XT-4, ACS Pro) that have become must-haves on the streets, and on the other, trail and running shoes (Speedcross, S/Lab, Sense Ride) designed for performance.
This guide provides you with the concrete information you need to order the right size on the first try, model by model.
Does Salomon run small or true to size?
Salomon is known for its narrow fit. The brand designs its shoes for a precise foot hold, rooted in trail running. This philosophy is felt across the entire range, even in lifestyle models.
For lifestyle sneakers, the length stays true to standard sizing for most models. You can stick with your usual size, unless you have wide feet: in that case, go up half a size.
For trail and running shoes, the rule changes. The brand recommends going up half a size to allow for foot swelling during activity. This rule is almost universally applicable, especially for technical models (Speedcross, S/Lab, X Ultra).
Another point to know: Salomon's Quicklace system (the quick-lacing system) fits differently than traditional lacing. Some wearers prefer to go up half a size for added comfort, especially with thick socks.
Salomon Size Conversion Chart
Salomon uses European third sizes (38⅔, 40⅔, 42⅔…), a unique feature of the brand that can be confusing at first glance. Official reference:
| Length (cm) | EU Size | UK | US Men | US Women |
|---|
| 23.0 | 36⅔ | 4.5 | 5 | 6 |
| 24.0 | 38 | 5.5 | 6 | 7 |
| 24.5 | 38⅔ | 6 | 6.5 | 7.5 |
| 25.0 | 39⅓ | 6.5 | 7 | 8 |
| 25.5 | 40 | 7 | 7.5 | 8.5 |
| 26.0 | 40⅔ | 7.5 | 8 | 9 |
| 26.5 | 41⅓ | 8 | 8.5 | 9.5 |
| 27.0 | 42 | 8.5 | 9 | 10 |
| 27.5 | 42⅔ | 9 | 9.5 | 10.5 |
| 28.0 | 43⅓ | 9.5 | 10 | 11 |
| 28.5 | 44 | 10 | 10.5 | 11.5 |
| 29.0 | 44⅔ | 10.5 | 11 | 12 |
| 29.5 | 45⅓ | 11 | 11.5 | 12.5 |
| 30.0 | 46 | 11.5 | 12 | 13 |
Our advice: measure your foot at the end of the day when it is naturally at its maximum volume. Place it on a sheet of paper, trace the outline, then measure the distance from the heel to the longest toe. Do this for both feet and keep the larger measurement.
How do Salomon lifestyle models fit?
Salomon's lifestyle models share the brand's trail DNA: precise support, snug fit, and enveloping mesh. Here’s what you need to know for each silhouette.
Salomon XT-6
The XT-6 fits true to standard size. Go with your usual size. The structured mesh hugs the foot closely: if you have wide feet, going up half a size improves comfort. The Gore-Tex version is stiffer due to the waterproof membrane: for this variant, always count on going up half a size.
Salomon XT-4
The XT-4 fits slightly more generously than the XT-6. Stick with your usual size. It’s a good option if you find the XT-6 too snug in the forefoot.
Salomon ACS Pro
The ACS Pro is the lifestyle exception: most wearers recommend going up half a size. The tight fit can compress the forefoot with a standard size.
Salomon ACS+
The ACS+ offers a more relaxed fit than the ACS Pro. Go with your usual size. If you prefer a more enveloping fit, you can go down half a size.
Salomon XT-Slate Advanced
The XT-Slate Advanced fits true to size, on a standard width. It’s one of the most versatile silhouettes in terms of fit.
Lifestyle Summary
| Model | Sizing Advice |
|---|
| XT-6 | Your size (+½ if wide foot or Gore-Tex version) |
| XT-4 | Your usual size |
| ACS Pro | ½ size up |
| ACS+ | Your size (-½ for snug fit) |
| XT-Slate Advanced | Your usual size |
How do Salomon trail models fit?
For trail and running, the general Salomon rule applies: +0.5 shoe size. Your foot swells during runs, sometimes by a full half size on long outings.
Salomon Speedcross
The Speedcross is Salomon's most iconic trail shoe, designed for technical terrains. It has a narrow fit in the upper and at the front. The almost unanimous recommendation from runners: go up half a size. This advice is especially true for long distances and thick technical socks.
Salomon S/Lab
The S/Lab line includes the brand's competition models. It features a very snug construction with maximum support. Expect to go half a size up from your usual size; this rule applies to nearly all models in the range.
Salomon Sense Ride and Ultra Glide
The Sense Ride and Ultra Glide are Salomon's trail models with the most generous fit. The toe box offers more room at the front. You can stick with your usual size, especially for medium outings. For very long distances (50 km and more), going up half a size is a safe bet.
Salomon X Ultra (hiking)
The X Ultra is designed for hiking. With thicker socks and long-term use, going up half a size is highly recommended.
Trail Summary
| Model | Size Advice |
|---|
| Speedcross | ½ size up |
| S/Lab (entire range) | ½ size up |
| Sense Ride / Ultra Glide | Your size (+½ for ultra-distance) |
| X Ultra | ½ size up |
Salomon vs Nike, adidas, Hoka: size guide
Coming from another brand? Here’s how Salomon stacks up:
- Salomon vs Nike: Salomon fits narrower than Nike, especially in the midfoot. For a snug model like the XT-6, stick to your usual Nike size, but go up half a size if you have wide feet.
- Salomon vs adidas: similar lengths, but Salomon is tighter in width. If you wear a size 42 in Samba or Gazelle, a size 42 Salomon will work for length. Consider going up half a size if the front of your foot feels tight.
- Salomon vs Hoka: Hoka fits wider and more generously. If you usually wear Hoka, switching to Salomon will require an adjustment, often going up half a size to achieve similar comfort.