The Bridgedale Hike Midweight Endurance Sock is a comfortable and durable midweight sock designed for all year backpacking, trekking and hiking. Designed to offer high performance durability and insulation, the Trekker sock provides thermal balance and moisture control thanks to the use of Enduro Wool. Enduro Wool is the first spin of wool that guarantees quality, softness and long lasting durability. Wool Fusion socks bring together the insulation and durability of Enduro Wool with technical fibres that provide wicking performance. Endurofil fibres wrap around the Enduro Wool yarn that transport moisture away from the skin ensuring your feet feel dry and comfortable. The Endurofil fibres also provide high abrasion and wash resistance. CuPED technology provides enhanced anti-odour performance by incorporating copper ions into the yarn structure that provide anti-microbial protection around the foot. Other features of the Bridgedale Trekker sock include a double cuff, a half terry leg and extra padding underfoot for further cushioning. Wool Fusion Bridgedale socks come with a 3 year guarantee. 44% Enduro Wool, 38% nylon, 17% Endurofil, 1% Lycra Midweight sock designed for all year trekking and backpacking Durable and insulating midweight sock Wool Fusion combines Enduro Wool with Endurofil Excellent thermal and moisture control High wicking performance CuPED technology for anti-odour performance Extra padding underfoot Half leg terry and double cuff Bridgedale Hike Midweight Endurance Sock Black unisex XL Footwear, Socks.