
Clothing does not generate heat, but your body does. A warm, thick, and comfortable sock that traps air while being breathable enough to remove moisture, like our Robust model, is the perfect balance for ideal thermal protection.
Heat index: 4/4
| SOCK SIZE | MEN'S SHOE SIZE | WOMEN'S SHOE SIZE |
|---|---|---|
| S | 3 - 5.5 | 4 - 6.5 |
| M | 6 - 8.5 | 7 - 9.5 |
| L | 9 - 11.5 | 10 - 12.5 |