Wrightsock Women's Coolmesh Athletic Socks Three-Pack Inner: 70% Polyester, 30% Nylon; Outer: 71% Polyester, 24% Nylon, 5% Lycra Machine Wash Three-pack of athletic socks featuring double-layer construction and ribbed-knit cuffs Dri-WRIGHT performance yarns to wick moisture Double layer construction to prevent friction and blisters