Cold days on the mountain call for versatile layers like the men's Rossignol Opside Hooded Jacket. You can layer it under a shell to hold in the heat on the mountain, or wear it solo while Nordic skiing and hiking. No matter how you enjoy cool weather, breathable synthetic insulation offers warmth without bulk and helps regulate your temperature as you warm up. Stretch fabric and preshaped sleeves support natural movement, and an integrated hood seals the deal for comfort.