Cooler and drier than cotton underwear, and perfect for multi-day trips. Wash out in any sink (and they’ll be dry by morning) so you don’t have to pack as many. Designed for maximum next-to-the-skin comfort and microclimatic efficiency, this first-layer will keep you comfortable. Trapping warm air next to your skin and allowing moisture to be transported away is the key feature of this fabric. Skinetics® is an advanced wicking fast-dry knit (dries three times faster than cotton). Constructed with durable, comfortable flat seams, and shaped to eliminate bunching and wrinkling. An ideal first layer. Black or Grey. S(28–32), M(33–35), L(36–39), XL(40–42).