The Alpinestars A-Dura socks are constructed with a 3-layer membrane and designed to keep you dry and comfortable in cold and humid conditions. Keep your feet dry in all riding conditions with the A-Dura waterproof socks. The hydrophilic membrane will prevent the entry of water and mud while providing the right balance of breathability, wicking moisture from sweat and heat away from the skin to the outside of the sock. The socks are unisex and provide a perfect fit for both men and women. They feature a nylon outer fabric to protect against rain and mud. They are highly breathable and effective at releasing sweat and heat from inside the sock. The ribbed construction allows for greater elasticity. The multi-material outer construction includes nylon, Lycra, and spandex to offer a good level of stretch and elasticity. The inner sock is made from 80% cotton and 20% spandex for a soft feel against the skin. By ensuring your feet remain dry, the socks will help prevent blisters.