Acrylic/Polyester/Nylon/Wool/Spandex Blend - FastDry® technology wicks away sweat - Fights odors - Mesh cooling panels and instep channels promote air flow - Braced arch adds stability and holds the sock in place - Resilient wool/acrylic blend retains original shape and bounce - NanoGLIDE® reinforcement for increased durability and reduced blister causing friction - **Fabric contents vary by color -