Sealskinz 100% WATERPROOF SOCKS are the perfect balance of water protection, warmth and breathability. Mid weight and knee length they are ideal for a multitude of activities and conditions. Designed to be used in a wide range of activities including walking, cycling, trekking, sailing and hiking.Using Sealskinz unrivalled technology and the highest quality materials including a moisture wicking merino wool inner, these socks are the perfect accessory to any outdoor adventure.Hot or cold, wet or dry, Sealskinz WATERPROOF SOCKS meet the demands of the environment to keep you protected and comfortable. The inner membrane protects you from water, dust and dirt allowing you to keep going no matter what the weather. The unique properties of the membrane means the socks have a high breathability factor, keeping your feet dry and helping to prevent rubbing even in warm conditions. If you are using the waterproof socks in cold conditions, the thermal sock properties keep your feet warm and dry.