Running, hiking, or any other high-energy activity is all the more comfortable when you"re wearing the Oakley Women"s Cool Down Shirt. The stretchy fabric moves moisture away from your skin, while the mesh inserts allow cooling air to circulate. Oakley supplements this performance with easy, casual good looks that will make this a favorite for any active day. Product FeaturesMaterial: O Hydrolix (55% nylon, 45% polyester)Fit: performanceLength: Center Back Length: Style: Pockets: Thumbholes: UPF Rating: Antimicrobial: Weight: Recommended Use: running, hikingManufacturer Warranty: 30 days