Rossignol THERMOTECH 2P X3 W Warmth and comfort in the mountains starts with your feet. Rossignol THERMOTECH 2P X3 W socks features a wool blend for natural moisture wicking and breathable warmth. The height above the calf creates a snug and warm seal with base layers, and their stretchy fit ensures they always stay in place. They come in pairs. Rossignol THERMOTECH 2P X3 W