The Patagonia Women's Capilene Air Crew Shirt blends superior warmth, moisture control and a perfect fit in one garment. With a unique 3D knit seamless construction, the Capilene® effortlessly conforms to the wearer's shape and movements. An innovative fabric blend offers moisture-wicking, fast-drying and odor resistance. This stretchy super-lightweight baselayer helps protect you in frigid temperatures without adding bulk.