DetailsThe T3 All Season Trekker is an unisex trekking sock with T3 TECHNOLOGY. The T3 All Season Trekker is a super-heavy and reinforced sock that will give you maximum protection on trips with hard shell footwear in medium and high temperatures. COOLMAX® is a polyester yarn from Invista® with channels to efficiently transport moisture away from the skin to the outside of the sock. COOLMAX® fibres work to move perspiration away from the body, and through the fabric, where it can evaporate quickly, allowing the wearer to feel cooler and more comfortable. TENCEL® is a cellulose Lenzing fiber which comes from Eucalyptus plants on certified sustainable plantations. Tencel®’s nano-structure provides exceptional wicking, accumulation, expansion and drying of moisture. TENCEL® provides a layer that is soft to the touch and comfortable against the skin. Lastly, a layer of STRETCH NYLON with LYCRA® adds durability and ensure these socks stay up in your running shoes without slipping down to your toes. On the one hand, NYLON is a synthetic continuous fibre that is characterized by its resistance and capacity to cushion. On the other hand, LYCRA® is a synthetic elastane fiber that can stretch up to six times its length and return to its original state.