The Patagonia R1 Air Vest is a technical fleece thermal vest, lightweight, highly breathable, and quick-drying, ideal for cold climates. Perfect for increasing warmth without constricting the shoulders or arms, and made from 100% recycled polyester fabric for greater comfort in movement. Manufactured in a Fair Trade Certified factory.Features:Airy, warm, and breathable fabricZigzag knit pattern increases airflow and minimises bulk for breathable and compressible performanceBreathable vest with full closure and a snug fit, designed for a full range of motionOff-shoulder seams sit comfortably under backpack strapsA zippered chest pocket on the left allows for storing small items; two front pockets with minimal zippers to reduce bulkQuick-drying woven trim on the rear hem and armholes for added stretch and improved fit