Colour: White/Blue Size; Large - Men's UK 10-13 The special construction of this sock with wool inside and CoolMax® outside is designed to carry perspiration away from the skin. The wool cushion sole will keep its resilience for many wears in high impact sports. A Health Sock® with no tight elastic top. Contents: 76% Australian Wool, 19% Coolmax, 4% Nylon and 1% Elastane. Sizes Available: Small, Medium, Large