Wet feet are a thing of the past with DexShell’s 100% waterproof products. DexShell’s revolutionary technology means that being 100% waterproof doesn’t mean you have to compromise on breathability either. The patented Porelle membrane that blocks water molecules getting through also wicks sweat away, leaving your feet dry and comfortable at all times. The Thermlite Sock is an over ankle length, lightweight merino wool sock. Suitable for tramping and other outdoor activities in cold, wet environments. DexShell's 100% Waterproof socks have a unique 3 ply construction to give you the ultimate in comfort and warmth. 3-ply construction Outer Shell - a protective layer constructed from abrasion-resistant materials that make the sock both durable and easy to drip-dry. Porelle Membrane - a hydrophilic membrane that blocks water droplets getting into the sock, but escorts water vapour molecules (sweat) out. Inner sock - constructed from materials that offer warmth and comfort against your skin. Features 100% WaterproofKeeps your feet completely warm and dry BreathableWicks sweat away from your feet Close-fittingFits snugly and comfortably Specs Outer Shell Construction 97% abrasion resistant nylon 2% elastane 1% elastics Interlining Porelle high performance waterproof, breathable membrane Inner Sock Construction 40% merino wool 20% nylon 40% acrylic anti-pilling