The Vans Skate Crew Sock is a 62% Coolmax, 33% Nylon, and 5% Elastane crew sock with Coolmax fiber for a supportive fit with arch compression, ventilated mesh for breathability, and cushioning for impact compression. Composition :48% Polyester, 34% Cotton, 11% Nylon, 6% Elastodiene, 1% Elastane