From a quick jog in the woods to a longer run in the mountains, the Nike Trail collection is durable and adaptable. It's designed to help you connect with your surroundings, even in tough conditions. The Aireez Packable Jacket is lightweight, perfect for cold, windy days. We've updated the design of previous versions with additional water-repellent panels on the shoulders and sleeves. Strategically placed vents provide breathability. This jacket easily packs into its own pocket when you're not using it.