Whether you're out for a quick forest jog or a longer mountain run, Nike Trail has the durability and adaptability to help make connecting with your surroundings easier, even in dynamic conditions.The packable Aireez jacket is perfect for those cold, breezy days that require lightweight layering. We updated the design from previous versions with extra water-repellent panels on the shoulders and sleeves. Vents add breathability where you need it most. When not in use, the jacket packs down into its own pocket for convenience.