Early starts, late finishes, dropping temperatures. The NikeLab Therma-FIT Running Flash Vest is built for all three. Combining Nike's heat-retaining Therma-FIT technology with lightweight insulation, it delivers dependable warmth without weighing you down. A reflective finish helps keep you visible on post-sunset runs, while the durable ripstop shell and five-pocket design ensure practicality when you're on the move. Body, Lining & Fill: 100% Polyester, Nike Therma-FIT Technology, 2 Way Zip Closure, Whistle At Left Collar, Reflective Design Face On Fabric, 4 Zip Pockets, Zip Back Pocket, Hand Wash, Style Code: IU5523-938, - Nike Women'sLab Running Flash Therma-FIT Vest Rainbow/Black Colour: blue