Darn Tough Sizing Chart
Sock sizes are based on your everyday shoe size. Each sock size fits about 2 to 3 shoe sizes. If you fall between two sizes, size up.
Men's & Unisex Socks:
| Size | U.S. Men's Shoe Size | U.S. Women's Shoe Size | Euro Shoe Size | UK Shoe Size |
|---|---|---|---|---|
| XS | 2.5 - 5 | 4.5 - 7 | 35 - 38 | 2.5 - 4.5 |
| S | 5.5 - 7.5 | 7.5 - 9.5 | 38 - 40 | 5 - 7 |
| M | 8 - 9.5 | 10 - 11.5 | 41 - 42 | 7.5 - 9 |
| L | 10 - 12 | 12 - 14 | 43 - 45 | 9.5 - 11.5 |
| XL | 12.5 - 14.5 | N/A | 46 - 49 | 12 - 14 |
| XXL | 15 - 17 | N/A | 50 - 53 | 15 - 16 |
Women's Socks:
| Size | U.S. Women's Shoe Size | U.S. Men's Shoe Size | Euro Shoe Size | UK Shoe Size |
|---|---|---|---|---|
| S | 4.5 - 7 | 2.5 - 5 | 35 - 37.5 | 2.5 - 4.5 |
| M | 7.5 - 9.5 | 5.5 - 7.5 | 38 - 40.5 | 5 - 7 |
| L | 10 - 11.5 | 8 - 9.5 | 41 - 42.5 | 7.5 - 9 |
| XL | 12 - 14 | 10 - 12 | 43 - 45 | 9.5 - 11.5 |
XL is only available in select women's styles.
Kids' Socks:
| Size | U.S. Kids' Shoe Size | Euro Shoe Size | UK Shoe Size |
|---|---|---|---|
| S | 9 - 11.5 | 26.5 - 29.5 | 8.5 - 11 |
| M | 12 - 2.5 | 30 - 34 | 11.5 - 2 |
| L | 3 - 6 | 35 - 38 | 2.5 - 5.5 |
Kids' shoe sizing starts over after size 13.5, so size M covers 12 through 2.5.
Men's styles sit a little higher on the leg than women's styles. Your sock size is printed inside the cuff (for example, "M"), so you can check a pair you already own.
