Our lightest, thinnest, waterproof sock. A mid-length, breathable sock, with Hydrostop™. 100% waterproof, our lighter socks are perfect for running, hiking or any activity. The Aquasealz™ membrane releases body-generated heat and moisture, while denying the entry of water. Natural bamboo lining has strong moisture-wicking properties. Hydrostop™ prevents water entering the top of sock. In very rare cases, close bond between sock cuff and skin may lead to rubbing.Features:- Ultra light waterproof socks with a regular feel- Perfect for warm weather- Moisture-wicking bamboo inner layer- Hydrostop™ stops water entering top of sockSpecifications:- Outer Layer: 94% Nylon, 6% Elastane- Middle Layer: Aquasealz® waterproof membrane- Inner Layer: 75% Bamboo Rayon, 23% Nylon, 2% Elastane- Outer: Extra-durable nylon exterior, with 4-way stretch for an optimal fit.- Mid-Section: Aquasealz™ membrane is 100% waterproof. Also highly effective in the release of moisture vapour from inside the sock.- Interior: Bamboo lining for added moisture control.- A seamless construction, with elastic support on the ankle, providing a close fit.- Hydrostop™: Hydrostop™ is an elastic taping around the inside cuff of the sock. This extra barrier reduces the risk of water dripping down the leg into the sock.Care:- Wash at 40ºC/105ºF- Low Tumble Dry or Drip Dry- Do not dry clean, Iron, or Bleach