Perfect Layering Piece for Climbing Any Peak With a waffle weave that extends all the way into the hood, the R1 Air is the perfect second layer for high-exertion activities in the mountains. It'll keep you warm when you need it, while wicking moisture and breathing well when you're sweating. The R1 Air Full-Zip Hoody is a lightweight, breathable and quick-drying technical fleece for high-exertion activities in cold conditions. Made of 100% recycled polyester and structured for comfort during movement. Fair Trade Certified sewn.