Thick wool socks made with an eco-friendly blend of recycled wool from clothing and virgin cotton made with leftover strands of cotton. They boast the generous thickness of wool socks but are more durable; perfect with boots for outdoor activities like camping and trekking. Material: 47% Wool, 42% Cotton, 10% Nylon, 1% Elastane Size: Small: JP23-25cm, EUR36-40, USM5-7, USW6-8 Medium: JP25-27cm, EUR40-43, USM7-9, USW8-10 Reference: WOOL COTTON BOOTS SOCKS MUSTARD