SealSkinz are the world's only waterproof and breathable close-fitting socks.
The first of three layers is a close-fitting coolmax sock which very cleverly draws moisture away from the feet, keeping them dry and cool.
The second layer is a waterproof membrane which prevents moisture from getting in.
The third layer is tough and durable, giving cushioning to the foot.
Col. Red

M - UK shoe size 6-8
L - UK shoe size 9-11