With all outerwear, waterproofing, breathability and warmth are main factors. The Marmot Excellerator Jacket has all of that covered, with MemBrainR nylon waterproof and breathable fabric, 100% seam taped 2 layer construction and Thermal R Insulation, which uses multi channel and hollow fibers to create lightweight, wicking warmth. You'll keep your core temperature up and waterproofing bar high. What the Excellerator really excels at is the extras. Marmot threw so many pockets on this jacket that you'll be able to bring everything you need along with you for your adventure. With PitZipsTM, an elastic drawcord hem, zip off powder skirt and helmet compatible hood, you'll have no problem keeping the warmth in or adjusting when it gets too hot. The Marmot Excellerator Jacket has you covered for anything you may encounter on the slopes.