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. Top: S–XL.