Sealskinz Waterproof Warm Weather Mid Length Socks With Hydrostop The original, 100% waterproof mid-length sock featuring Hydrostop which is the perfect barrier for use in wet and warm wet weather conditions. Developed using a three-layer construction the SealSkinz Mid-Length Socks ensure warmth, durability and waterproofing for all-weather wear. Delivering 100% waterproof protection the socks provide the perfect barrier between you and challenging wet weather; so you'll 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 evaporated so you can remain dry and comfortable in hot conditions. This version of the warm weather socks also uses Hydrostop which works to reduce water ingress so you can go further for longer. This unique technology pro