TOETOE - ESSENTIAL - Silk Mid-Calf - Black 60% Silk, 35% Nylon, 5% Lycra Wash with like colours. For best results wash with toes out. 30oC machine washable. Tumble dry on LOW heat. Do not use fabric conditioner. Seamless Construction - Seamless knitting technology provides gentle hold without restriction Blister Prevention - Helps prevent blisters as there's no friction between the toes Promotes Better Hygiene - By controlling the factors of bacterial growth (warmth, moisture, dirt), preventing bad smell, athlete's foot thus keeping the foot fresh Continuous Toe Movement Pattern - Maintains constant blood circulation and provides optimum warmth. Silk is also a natural insulator, keeps feet warm in cold weather, cool in hot weather Barefoot Feeling - Toe separation provides a complete barefoot sensation