SAS Size & Fit Guide
Women’s US 4–13 · Men’s US 6–16 · Six widths, from Slim to Triple Wide · Width grows with size
Find your SAS size with SAS’s official women’s and men’s size charts and width guide — or stop in for a Brannock fitting at our Kettering, Ohio store.
How it fits
SAS recommends a professional fitting with a Brannock Device whenever possible — the same way we fit every customer in our store. SAS measures length heel to toe, arch length from ball to heel, and width, on both feet.
If you’re ordering online, SAS says to use standard sizing as your guide. Keep in mind that all styles fit differently, and that width increases as you go up in size.
Between sizes
Between sizes? Size up if you wear thick socks or orthotics, or you're on your feet all day. Choose the smaller size if you like a snug fit.
Widths
| SAS width | Women’s letter width | Men’s letter width |
|---|---|---|
| S — Slim | AAA | B |
| N — Narrow | AA | C |
| M — Medium | B | D |
| W — Wide | C | E |
| WW — Double Wide | D | EE–EEE |
| WWW — Triple Wide (widest) | E–EE | EEE–EEEE |
The widths we carry vary by style; our size picker shows SAS’s letters (S, N, M, W, WW, WWW).
Orthotics
SAS notes that many customers wear doctor-recommended orthotics. Inserts can need extra depth in the shoe and change how it fits, so allow for them when you choose your size.
SAS men’s sizes are 1½ sizes below women’s for the same foot length (women’s 7½ = men’s 6).
Women
| US | UK | EU | Foot length (in) | Foot length (cm) |
|---|---|---|---|---|
| 4 | 1½ | 34 | 8 1/3" | 21.2 |
| 4½ | 2 | 34–35 | 8 1/2" | 21.6 |
| 5 | 2½ | 35 | 8 2/3" | 22 |
| 5½ | 3 | 35–36 | 8 5/6" | 22.4 |
| 6 | 3½ | 36 | 9" | 22.9 |
| 6½ | 4 | 36–37 | 9 1/6" | 23.3 |
| 7 | 4½ | 37–38 | 9 1/3" | 23.7 |
| 7½ | 5 | 38 | 9 1/2" | 24.1 |
| 8 | 5½ | 38–39 | 9 2/3" | 24.6 |
| 8½ | 6 | 39–40 | 9 5/6" | 25 |
| 9 | 6½ | 40 | 10" | 25.4 |
| 9½ | 7 | 40–41 | 10 1/6" | 25.8 |
| 10 | 7½ | 41–42 | 10 1/3" | 26.2 |
| 10½ | 8 | 42 | 10 1/2" | 26.7 |
| 11 | 8½ | 42–43 | 10 2/3" | 27.1 |
| 11½ | 9 | 43–44 | 10 5/6" | 27.5 |
| 12 | 9½ | 44 | 11" | 28 |
| 12½ | 10 | 44–45 | 11 1/6" | 28.4 |
| 13 | 10½ | 45–46 | 11 1/3" | 28.8 |
Men
| US | UK | EU | Foot length (in) | Foot length (cm) |
|---|---|---|---|---|
| 6 | 5 | 38 | 9 1/2" | 24.1 |
| 6½ | 5½ | 38–39 | 9 2/3" | 24.6 |
| 7 | 6 | 39–40 | 9 5/6" | 25 |
| 7½ | 6½ | 40 | 10" | 25.4 |
| 8 | 7 | 40–41 | 10 1/6" | 25.8 |
| 8½ | 7½ | 41–42 | 10 1/3" | 26.2 |
| 9 | 8 | 42 | 10 1/2" | 26.7 |
| 9½ | 8½ | 42–43 | 10 2/3" | 27.1 |
| 10 | 9 | 43–44 | 10 5/6" | 27.5 |
| 10½ | 9½ | 44 | 11" | 28 |
| 11 | 10 | 44–45 | 11 1/6" | 28.4 |
| 11½ | 10½ | 45–46 | 11 1/3" | 28.8 |
| 12 | 11 | 46 | 11 1/2" | 29.2 |
| 12½ | 11½ | 46–47 | 11 2/3" | 29.6 |
| 13 | 12 | 47–48 | 11 5/6" | 30.1 |
| 13½ | 12½ | 48 | 12" | 30.5 |
| 14 | 13 | 48–49 | 12 1/6" | 30.9 |
| 14½ | 13½ | 49–50 | 12 1/3" | 31.3 |
| 15 | 14 | 50 | 12 1/2" | 31.8 |
| 15½ | 14½ | 50–51 | 12 2/3" | 32.2 |
| 16 | 15 | 51–52 | 12 5/6" | 32.6 |
Foot lengths are SAS’s. Where an EU size shows a range (like 35–36), the US size falls between those two EU sizes.
How to measure
- Stand on a sheet of paper, with your weight on that foot.
- Mark the back of your heel and the tip of your longest toe.
- Measure between the marks in inches or centimeters.
- Measure both feet and use the longer one.
- Measure later in the day, when feet are at their largest, wearing the socks you’ll wear with the shoes.
Need help? We measure every customer with a Brannock device at our Kettering store. Stop in for a fitting, or call us at 937.298.1801 and we’ll help you choose. Ready to shop? Shop all SAS →
Source: SAS Fitting Guide (sasshoes.com) · Last checked October 2026