These merino wool socks with terry loop cushioning are suitable for trekking, hiking and other activities in difficult wet environments where keeping your feet warm and dry is important. Constructed with a patented 4 way stretch lamination technology. 100% waterproof, windproof and breathable. Warm, breathable, moisture repellent and anti-static, Merino has the capacity to deal with moisture like no other yarns, absorbing perspiration and releasing it into the air as vapour. Merino wool cushioning inner  COMPOSITION: Outer: 98% polyamide, 2% elastane Interlining: Porelle® membrane (Polyurethane) Inner: 38% merino wool, 38% acrylic, 24% polyamide