Balega"s Drynamix air conditioning fabric system allows free movement of airflow ensuring cool and dry feet with its unique rapid moisture evaporation system This running sock is designed for women athletes by women athletes and features : Seamless toe hand-linked for seam free comfort reinforced heel and toe for lasting durability and protection and mesh construction for ventilation Color(s) : White/Pink Material/Fabric : 77% Drynamix Polyester/21%Polyamide/2% Nylon Elastique Sizes Available : (S : 6-8) (M : 8.5-10.5)