Our warmest ski sock with medical-grade compression, the Thermo Compression Sock is built for winter.
At Black Diamond, we're committed to going deep, whether that's into the mountains, the design process, or the community we love. Our fall/winter collection of equipment and apparel is built for the experience of casting off, and diving into the deep end of adventure.
| Size | Calf Circumference | US Men | US Women | EU Sizing |
|---|---|---|---|---|
| S | 9.5–12 in 25–31 cm | 3 – 7.5 | 4 – 9 | 34 – 40 |
| M | 12.5–15 in 32–38 cm | 5 – 10 | 6.5 – 12 | 37 – 43 |
| L | 15.5–17.5 in 39–44 cm | 7.5 – 13 | 9 – 15 | 40 – 46 |
| XL | 18–20 in 45–50 cm | 10+ | 12+ | 43+ |
Measure your calf circumference at the widest part
