Super soft bamboo socks with seamless toe for comfort Breathable. Cooling in Heat and Snug in Cold Anti-Bacterial Moisture Wicking. Keeping feet dry. Especially during sporting activities. They have a reinforced heel and toe for extra durability. Sustainable Material with Biodegradable Packaging. Fabric: 75% Bamboo, 23% Nylon, 2% Spandex. Please note there are extra threads on the inside which makes the sock feel more cosy and gives it its beautiful design. Washing Instructions  Wash at 30°C. Do not tumble dry.