Sealskinz Hydrostop Mid Water Proof All Weather Sock

We pioneered the use of a unique hydrophilic membrane that&';s 100% waterproof yet pulls moisture away from your skin at the molecular level -- keeping you dry and cool all at the same time. With a Hydrostatic Head of >20,000mm and the addition of Hydrostop(TM) technology, which creates a barrier between your skin and the sock to help prevent water from coming in through the top of the sock, our socks stay waterproof under the toughest of conditions. Please note that due to the close bond between sock cuff and skin, over prolonged use, some people may experience minor skin irritation due to the Hydrostop(TM) barrier rubbing against the skin. For those who experience any irritation, we recommend that Hydrostop(TM) socks are only used outdoors and not for a prolonged period of time. Our 100% waterproof socks are constructed using premium materials and by bonding three layers together to make one highly waterproof and breathable sock:a Outer Layer - 90% Nylon, 10% Elastanea Middle Layer - 100% Hydrophilic Membranea Inner Layer - 36% Merino Wool, 36% Acrylic, 18% Polyester, 5% Elastane, 4% Nylon, 1% TPU We don&';t like complicated things. And when it comes to the care of your socks, we want to make it as simple as possible. This is the type of sock you can throw in the wash along with the rest of your gear. No need to line dry or wash with special detergents. Since the membrane is a solid barrier, you&';ll never need to re-waterproof.a Wash at 40degC/105degFa Low Tumble Dry or Drip Drya Do Not Dry Clean, Iron, or Bleach Socks S M L XL UK shoe size 3 - 5 6 - 8 9 - 11 12 - 14 Euro shoe size 36 - 38 39 - 42 43 - 46 47 - 49 US shoe size (Men) 3.5 - 6 7 - 9 10 - 12 13 - 15 US shoe size (Women) 5 - 7 8 - 10 11 - 12