Merino 10 Ultra Light Quarter offers zero cushioning with ankle coverage for added warmth and protection. Merino wool and Tencel fibers keep feet dry and comfortable, while anatomical design ensures a Custom-Like Fit ideal for training, hiking, or everyday active wear. Specs Ultra LightTakes up minimal space in the shoe, with high breathability to keep your feet dry in various conditions. Quarter2" quarter length offers the perfect amount of ankle protection from rocks, dirt and mud while running, cycling, or everyday use. Materials & Care Merino Wool & TENCEL A unique blend of rarefied 200-needle thread count merino wool spun with TENCEL fibers, for a game-changing sock that&';s comfier, stretchier, drier, and more durable than ever before. 49% Nylon, 24% Wool, 23% TENCEL, 4% SpandexMade with recycled yarns that reduce environmental impact CareMachine wash cold or warm, on the gentle cycle with a mild soap, avoiding bleach and fabric softeners. Tumble dry low. For best results, hang or lay flat to dry. Turn inside out before washing.