Their lightest midlayer is the perfect solution for ambitious mountain athletes or anyone who prizes the highest possible performance at the lowest possible weight. Made of Polartec® Power Grid material, it is comfortable, stretchy, and actively sweat wicking. Flatlock seams prevent chafing, a deep front zipper provides efficient ventilation, and a laminated chest pocket keeps small essentials accessible and secure. Made to accommodate all seasons and a full range of pursuits, this versatile piece is as comfortable as a midlayer on a brisk spring hike as it is as a first layer on a winter ski tour. A sure favorite no matter what you’re up to next.