The Women's Patagonia R1 Pullover is made from durable, stretchy, and breathable Polartec Power Grid fabric hybridized with Capilene Thermal Weight baselayer fabric to reduce bulk and make this lightweight layer even lighter, featuring HeiQ Pure odor control to keep things fresh. The hybrid design enhances warmth around the core while improving underarm breathability and venting extra heat. Hybridized fabrics offer outstanding stretch and increased mobility, especially when reaching overhead. A zippered left-chest pocket includes a zipper garage and an air-permeable mesh pocket bag to maintain breathability. This slim-fit pullover has a center-front half-zip with a low-profile zipper garage at the chin for next-to-skin comfort and offset shoulder seams that sit away from pack straps.