Northwave extreme winter high sock aw15merino wool is renowned for its temperature regulating properties a mix of tight knit merino and polyamide will ensure that you stay warm and dry as they have the capacity to absorb up to 20 humidity whilst your socks remain durable a 25cm sock length provides excellent coverage for colder weather features breathable blend of merino polyamide and lycra for warmth and comfort calf high for extended coverage in cold weather reinforced heel and toe with d