The Patagonia R1 Air Vest is the kind of gear you forget you're wearing-until you take it off and realize how much it was doing for you. Designed for breathability and movement, it delivers just the right amount of core warmth without limiting your arms or range of motion. Whether you're layering up for alpine starts or chasing a shoulder-season trail run, this vest keeps your temperature in check while wicking moisture and drying fast. With a technical build made entirely from recycled materials, it supports your pace and the planet at the same time. Patagonia designed this slim-fitting core essential to perform hard and pack small | Patagonia Men's R1 Air Vest