Mid-Calf Sports Socks Made of 95% Polyester & 5% Spandex (100 G_&_M²). Reinforced Mesh in the Sole & Ankle Areas of the Foot, Ensuring Greater Comfort When Playing Sports. Contains Mesh for Ventilation & Elastic at the Cuffs. Size: 36-39, 40-44; Certificates Available: Oeko-Tex Minimum Quantities Apply.