S/Lab Ultra v3
Width options: standard (Men's) / standard (Women's)
Not enough evidence yet
2 of 2 runners said this shoe fit true to size.
Sizing vs. popular reference shoes
| If you wear | Length | Width | Toebox | Reports |
|---|---|---|---|---|
New Balance FuelCell SC Elite 4 (Women's) 10.5100% 1 of 1 runners landed on 10.5 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 10.5-10.5 |
Saucony Endorphin Pro 2 (Women's) 10.5100% 1 of 1 runners landed on 10.5 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 10.5-10.5 |
1 of 1 runners landed on 10.5 (0.5 weighted).
1 of 1 runners landed on 10.5 (0.5 weighted).
Your size, to start
Start with your usual size unless strong runner evidence says otherwise. We don't yet have enough validated reports to confidently recommend a length-size change for the Salomon S/Lab Ultra 3 (Men's).
Own the Salomon S/Lab Ultra 3 (Men's)? A 20-second fit report helps other runners.
Add my fit reportCommunity reports
Across the full report set, this many called the shoe true to size.
Reports linked to a public source you can open and verify.
Signals for hotspots, blisters, or other pain points across the full report set.
Runner notes are AI-extracted sizing summaries from public running-shoe discussions. They are not quotes.
| Came from | Bought | Verdict | Runner note | Issues | When |
|---|---|---|---|---|---|
Saucony Endorphin Pro 2 (Women's) Size unknown | 10.5 | True to sizeTrue to width | Reported fit vs Saucony Endorphin Pro 2 (Women's) — true to length, true to width. | No issues | Mar 2026 |
New Balance FuelCell SC Elite 4 (Women's) Size unknown | 10.5 | True to sizeTrue to width | Reported fit vs New Balance FuelCell SC Elite 4 (Women's) — true to length, true to width. | No issues | Mar 2026 |
Reported fit vs Saucony Endorphin Pro 2 (Women's) — true to length, true to width.
Reported fit vs New Balance FuelCell SC Elite 4 (Women's) — true to length, true to width.
Compare with popular shoes
See how the Salomon S/Lab Ultra (Men's) fits side-by-side with shoes runners know well.
Swipe to compare more shoes.
