The men's Patagonia Nano-Air Shirt Jacket's tough H2No Performance Standard shell fabric offers breathable, waterproof protection, enhanced by a durable water repellent finish. The Thermogreen recycled synthetic insulation delivers wicking warmth, while the fixed helmet-compatible hood and tall collar offer additional protection. Articulated arms ensure mobility, and adjustable wrist cuffs and hem keep out the elements. It's Fair Trade Certified.