This jacket is a rarity- it is down filled, yet has a waterproof treatment and Windstopper microfiber. It is a great way to cut out extra layers, because the insulation layer and waterproofing layers are in the same jacket, eliminating the need to buy separate jackets. The stitching to keep the down in place adds some style with a wave pattern instead of the standard block stitch. This is a highly rated jacket for cold weather outdoor adventures and snowsports.