How do you know what sock size is right for you? Smartwool socks run true to size, based on total foot length, and calf circumference, for compression socks. Refer to the sock size charts below to identify the right size for you.
Men's Smartwool Socks Size Chart
| Size | U.S. Men's Shoe Size | Euro Shoe Size | UK Shoe Size | Calf Circumference (Largest part of the calf) |
|---|---|---|---|---|
| S | 3-5.5 | 34-37 | 2-4.5 | 11"-14.5" (18-26.5 cm) |
| M | 6-8.5 | 38-41 | 5-7.5 | 12.5"-16.5" (32-41 cm) |
| L | 9-11.5 | 42-45 | 8-10.5 | 14.5"-18" (37-45.5 cm) |
| XL | 12-14.5 | 46-49 | 11-13.5 | 16"-23" (41-58 cm) |
*Compression Socks and Calf Sleeves fit the same calf circumference as corresponding sock sizing.
Women's Smartwool Socks Size Chart
| Size | U.S. Women's Shoe Size | Euro Shoe Size | UK Shoe Size | Calf Circumference (Largest part of the calf) |
|---|---|---|---|---|
| S | 4-6.5 | 34-37 | 2-4.5 | 11"-14.5" (18-26.5 cm) |
| M | 7-9.5 | 38-41 | 5-7.5 | 12.5"-16.5" (32-41 cm) |
| L | 10-12.5 | 42-45 | 8-10.5 | 14.5"-18" (37-45.5 cm) |
| XL | N/A | 46-49 | 11-13.5 | 16"-23" (41-58 cm) |
*Compression Socks and Calf Sleeves fit the same calf circumference as corresponding sock sizing.
Kids' Smartwool Socks Size Chart
| Size | U.S. Shoe Size | Euro Shoe Size | UK Shoe Size |
|---|---|---|---|
| XS | 6-8.5 | 22-25 | 5-7.5 |
| S | 9-11.5 | 26-28 | 8-10.5 |
| M | 12-2.5 | 29-32 | 11-13.5 |
| L | 3-6 | 33-36 | 1-4.5 |