Extra thick and reinforced T3 sock. Warm and dry feet in the most extreme conditions. Ideal for routes with a rigid or semi-rigid boot.

Features
Mesh Instep that minimizes bulk on the top of the foot and promotes heat and moisture release
Heavy cushioning for added protection
The Flat Knit Toe Seam means no irritation on your toes

Materials
41% Primaloft Eco, 25% Red-Cycled Nylon, 20% Stretch Nylon with Lycra, 14% MerinoWool