Feetures elite no show running socks Lifetime warranty Medium in Trek teal Product Details Targeted Compression and anatomical design provide an unmatched Custom-Like Fit. Maximum cushioning and comfort that protects the foot. Anatomical design enhances fit, delivering maximum comfort and protection by eliminating blisters. The Perfect Toe®. (No irritating toe seam.) No Show Tab height sits below the ankle for maximum versatility. Now made with yarn made from recycled plastic. 74% Polyester; 21% Nylon; 5% Spandex. Machine wash cold. Tumble dry low. No bleach or fabric softeners. For best results, wash socks inside