AS W NSW TF SYNFL NK CLSC VESTNike Sportswear Classic Puffer Women's Therma FIT Loose Vest Take on the winter chill in a vest designed to add some warmth to your life. Loose enough to layer, its synthetic fill adds insulation while Nike Therma FIT technology helps manage your bodys natural heat to help keep you warm in cold weather conditions. On top of that, a water repellent finish helps keep you dry. So zip it up, throw your hands in the pockets and get out there! Keep the Cold