Nike Dri-FIT Element Half-Zip Blue Large. Obsidian/Game Royal/Reflective Silver. NWT. Great for running or other athletic activities. The Nike Dri-FIT Element Top gives you soft, smooth coverage that can be worn on its own or as an extra layer. It easily adjusts at the neck and sleeves so you can stay comfortable as you heat up and cool down. Even better, it's made with at least 75% recycled polyester fibers. Product Details - Reflective elements - 88% polyester/12% spandex - Machine wash