Description + The Patagonia Nano Puff Insulated Jacket offers warmth without weight so you can trek into the alpine with a lighter pack. Its Primaloft Gold Eco insulation adds the touch of warmth needed for active endeavors in cold places, and it's compressible so the jacket stows inside its own pocket for compact convenience on your harness or in your pack. Patagonia also treated the jacket's tough, recycled ripstop shell to shed snowflakes and raindrops. patagonia nano puff insulated jacket - men's