Awarding warmth with featherlight weight, softness and compressibility, the Puffball feels like a backcountry luxury. Wear it underneath a shell for serious core warmth in serious cold, or as an outer layer when the going's not so desperate. The polyester shell resists wind and snow; the slick ripstop nylon lining slides easily over or under layers. One of the two zippered handwarmer pockets doubles as a stuff sack. Imported. Puffball Vest (Unisex)