96% Nylon, 4% Elastane. Fabric: Coolmax, Knitted. Design: Contrast Detail. Fabric Technology: Anti-Bacterial, Compression 360, Durable, Quick Dry. Stimulates Circulation. Anatomically Shaped, Arch Support, Cushioned, Dual Layer Insole, Heel Support, Pinpoint Compression Layers. Cuff: Ribbed. Spiro Men's Technical Compression Sports Socks in White Size: Large/XL