Designed for high-output activity in cold conditions, the Patagonia Men&&';;s R1 Air Zip-Neck is a lightweight, highly breathable fleece that performs under pressure. Made from 100% recycled polyester, its unique zigzag texture wicks moisture, dries quickly, and stretches with your movement for unmatched comfort on the move. Whether you&';re ski touring, trail running, or alpine climbing, the R1 Air delivers warmth and performance without overheating. Features: Technical Performance Fleece: Ideal for high-exertion activities in cold climates with lightweight warmth and breathability. 100% Recycled Polyester: Eco-conscious construction with moisture-wicking and quick-drying properties. Innovative Zigzag Knit: Enhances airflow, reduces bulk, and moves comfortably with the body. Deep Front Zip: Allows for fast ventilation when your effort level ramps up. Slim Fit & Layer-Friendly: Designed to work as a midlayer or standalone piece in dynamic environments.