Thin sock or liner that keeps you cool thanks to the material it incorporates and the open mesh structure of the foot. Ideal for daily use. 67%ECO Fresh 19%Stretch Nylon with Lycra 14%Red-Cycled nylon,Technology for technical socks with two differentiated layers of yarn, blending different types of fibers to offer limited performance for athletes.,Lorpen's new ECOFresh fiber used in T2 models comes from Unifi and is comprised of 50% Sorbtek polyester and 50% Repreve polyester, both from 100% recycled plastic bottles. This yarn wicks moisture away 3 times faster than its competition.,Red-Cycled Nylon yarn is 100% made with fish nets whose useful life in the fishing industry has come to an end. Instead of becoming a hazard at the bottom of the ocean, they are recycled into a new nylon yarn. It is known for its strength and cushioning.,Lycra is a synthetic elastane fiber that can stretch up to six times its length and go back to its original state. Its strategic placement in the outer layer of Lorpen socks guarantees a long life for our socks.