The Radical 2 Primaloft Men's Hooded Jacket is a synthetic insulated puffy coat designed to be worn during cold aerobic exercise (like winter ski touring!?). The 80g of Primaloft Silver Active insulation in the chest, and 60g of Primaloft Silver Active insulation in the arms provide ample warmth during active exercise. Dynastretch elastic fabric under the arms allows for an improved range of motion, so you don't feel the Michelin Man while skiing in cold weather. This added stretch gives the Radical 2 far more range of motion than other comparably synthetic puffy coats. Stay warm and free to move with the Radical 2 Primaloft Men's Hoody.