Nike Men`s 3 Pack Dri-FIT Triple Fly Crew Socks 59% polyester/25% nylon/13% cotton/3% spandex Imported 3 Pack. Dri-FIT moisture-wicking technology. Left/right specific design for better fit. Arch compression. Lightweight construction offers a snug fit with less bulk. Nylon/cotton/polyester/spandex.