3 Pairs Strideline Optics Hyper Color Limited Edition Athletic Sport Crew Socks 1% spandex True-Color sublimated w/hyper infused ink Limited edition Double elastic calf provides stretch & performance, Patented heel strap secures ankle mobility & fit, Stridetec wicking fabric optimizes breathability, Double spun nylon gives increased arch support 42% Nylon, 39% Polyester, 15% Cotton, 3% Elastic, 1% Spandex Fits mens shoe sizes 6-12