Dropping temps means it's time to up the insulation. The Mountain Puffer Jacket offers functionality, warmth, and style fit for high alpine and other every day adventures in colder weather. Our Mountain Puffer Jacket offers is a classic insulated piece with modern touches. From 100% recycled nylon shell, C0 water resistant fabric, and a relaxed fit, the Mountain Jacket is a staple for outdoor living, and a statement for urban winters.