The Silver Ski Light is the finest ultra light weight ski sock. Designed for maximum "foot to boot" feel, this sock has the features to give you more performance with less bulk. Perfectly contoured, ultimate skin-like fit and feel. Euro Sock Silver Ski Light Over-the-Calf Socks Features & Specifications: Elasticized Arch and Ankle support Ultra “Smooth” no bunching Flat Toe Seam Ventilation channel for superior moisture management for maximum comfort and warmth provided by Silver DryStat These socks are made of Drystat. Composition: 70% Silver Drystat, 10% Microsupreme, 10% Nylon, 5% Elastam Lycra Colors may vary