Sealskinz Waterproof Warm Weather Mid Length Socks The original, 100% waterproof mid-length sock is the perfect barrier for use in wet and warmer weather conditions. Developed using a three-layer construction the SealSkinz Mid Length Socks ensure warmth, durability and waterproofing for all-weather wear. Delivering a 100% waterproof protection the socks provide the perfect barrier between you and challenging wet weather; so You will always remain dry and comfortable. Whilst the waterproof construction works to keep you dry from outside elements, the hydrophilic membrane also works to keep you dry from the inside. The membrane is attracted to moisture meaning it wicks excess sweat away from the skin where it can be easily evaporaTedso you can remain dry and comfortable in hot conditions. A bamboo lining also exists within the socks to provide insulation and comfort; the breathable lining allows cool air to circulate whilst still providing significant warmth for colder conditions. A close fIt isits comfortably against the skin and offers a 4-way stretch so your feet will never feel uncomfortably restricted. To prevent chafing and irritation the socks have been constructed with flat seams to prevent blisters. Completing the SealSkinz Waterproof Warm Weather Mid Length Socks is zonal elastication which increases support for added stability.