Lightweight and warm, the Nike AeroLayer Vest uses a water-resistant shell for cold conditions. All-new quilting delivers more comfort in questionable weather. Nike AeroLayer technology utilizes a layer of lightweight insulation between a water-resistant shell and inner lining to provide warmth and breathability. A semi-translucent lining showcases the technology. Heathered outer layer features an updated quilting design for more comfort. Polyester fill throughout has laser-cut details that help trap warm air. The result is warmth without weight. More Details Reflective details 100% polyester Machine wash