Our cold weather socks are crafted using a three-layer bonded construction that combines a 100% waterproof hydrophilic membrane with a premium Merino wool interior for warmth and sweat-wicking, and a durable nylon blend exterior with 4-way stretch for great fit and wearability Designed with warmth in mind these socks are constructed with the finest Merino wool and an added a layer of terry-loop knitting. This loop knitting actually traps heat within the air pockets keeping you warmer when you're in the coldest conditions The perfect mix of waterproofness and breathability, waterproof socks are ideal for keeping your feet dry and warm while cycling, hunting, commuting, working outside, fishing, or hiking Designed with a seamless construction including hand-linked flat toe seams and the addition of elastic support on the ankle, heel and instep, you won’t notice the seams but will definitely notice the extra comfort and fit Product Code: