EASY HEAT WITH GOOD BREATHING. Bad weather can no longer stop you wearing the Nike AeroLayer Vest. Lightweight heat and water protection allow you to withstand cold and rain for miles and miles, while the reflective details and generous storage make you ready for the long runs. Lightweight heat Nike AeroLayer technology uses a layer of lightweight insulation between a water-resistant shell and inner lining to provide warmth and breathability. Comfortable ventilation The polyester filling provides heat without weighing down, while carefully positioned holes release heat as the intensity increases. Plenty of storage Zippered hand pockets for safe storage. Smaller mesh pockets on the inside of both pockets offer additional storage. More information Normal fit for a relaxed feel Side panels in stretchy fabric allow you to move freely. Durable external locking eye Reflective graphics make you stand out from the crowd. Not intended to be used as personal protective equipment (PP