The Nano-Air® Light Hybrid Jacket is made for cool-weather objectives where you’re working hard. With 40-g FullRange® insulation, a flyweight shell and lining fabric, and R1® Air knit paneling for warm, stretchy, exceptionally breathable performance during high-exertion, high-elevation activities. The Men's Nano-Air® Light Hybrid Jacket is fully backed by our Ironclad Guarantee and you can find it on Patagonia.com. | Patagonia Men's Nano-Air® Light Hybrid Insulated Jacket in Black, Small - Alpine & Climbing Jackets - Polyester