Merino Wool & Combed Cotton Boot Sock (2 Pairs) 15% nylon Content: 45% Merino Wool, 40% Combed Cotton, 15% Nylon Unique combination of merino wool (best quality wool available) & combed cotton for exceptional warmth and comfort ProtectGuard Anti-odour socks inhibit the growth of odour causing bacteria Arch & Ankle support for superior fit Impact Support Zones, Double Cuff & Full Cushion -For Added Protection & Comfort