60% Cotton,27% Polyester,2% Nylon, 1% Spandex Superior Quality:Premium cottons and high-tech polyester and nylon blend,breathable and elastic to keep your hard-working feet comfortable all day long. Comfy & Fit:Deep heel pocket provides added stability for a perfect fit,arch support design improves foot arch fatigue and keeps sock from slipping,Boost performance when working out. Max Protection:Combination of softness and comfortable,cushioned in high impact to reduce foot pain during your activities,ultimate support in most situation. Increased Performance:The socks are designed to prevent blistering and provide ultimate comfy and durability for a tough job, extreme outdoor adventure or heavy duty work. Sweat Wicking: Moisture wicking control to keep feet cool and dry,it provides ventilation for added breathe-ability and keeps smelling fresh in most situation.