The Obermeyer Men's Iba Down Hybrid Jacket is a no-limits, high-tech ski jacket built with ultra-warm, eco-friendly insulation and is engineered to excel in the absolute coldest conditions. Obermeyer knows exactly what it takes to perform on the mountain's most frigid days. This ultra-weatherproof jacket is made for the frigid backwoods, the freezing mountaintops, and anywhere the spirit of adventure takes you. It's been engineered with high-tech, performance materials, to turn the coldest days into -business as usual. This jacket features sustainable, eco-friendly Allied 700 Fill Power Duck Down throughout the torso, for warmth where you need it most. In the sleeves, you'll find 3M™ Thinsulate™ Platinum Flex Insulation 100 g insulation. This combination of materials provides ultra-lightweight, all-weather insulation that keeps you warm without weighing you down. It's also been constructed with Toray® Dermizax DX™ 4-Way stretch material, so you get a full, unrestricted range of motion.