Our most versatile baselayer: warm, breathable and with Polygiene permanent odor control for daily use. Capilene Midweight Zip-Neck hits the sweet spot between weight, breathability and wicking performance so you can wear this piece alone or under layers to stay dry and comfortable during high-exertion activities in cool-to-cold weather. Constructed with Polartec Power Grid fabric, Capilene Midweight has a smooth face for easy layering and a brushed-back grid that aids in wicking as well as trapping warmth. Solid-colored fabrics have 93% recycled-polyester content, heathers have 63% and both are treated with Polygiene permanent odor control. Polygiene permanent odor control means less washing and longer wearing, and because it's Fair Trade Certified sewn, the people who made it earned a premium for their labor. Features include a long center-front zipper for venting, full underarm gussets for unhindered shoulder mobility, elastic thumb loops to cover your hands, flatlock seams to minimize chafing, raglan shoulder seams and offset side seams that lie smoothly beneath pack straps, and a drop tail for better coverage.