When the Columbia Powder Lite Insulated Jacket is part of your advanced layering system you can brave the coldest days in the backcountry or at your resort of choice. This jacket is built to be worn under a waterproof shell to provide you with the warmth you need to brave the high alpine, while also keeping you lightweight and comfortable. The Thermarator synthetic insulation provides this warmth while maintaining a bulk-free fit that keeps you moving. Meanwhile the Storm-Lite outer fabric enables you to drop the shell on sunny spring days, or while working hard on the skin track, by fighting off light precipitation and daily abuse.