The Rossignol Opside Hoodie Warm Men's Jacket is a versatile insulating layer you can rely on on the coldest days. It can be worn under a ski jacket for extra warmth or on its own while hiking or cross-country skiing. Breathable synthetic insulation provides warmth without bulk and helps regulate your temperature as your body heats up. Stretch fabric and articulated sleeves promote natural movement, and an integrated hood further enhances comfort.