When it comes to enjoying the great outdoors, every layer matters. That's why the Obermeyer® Ultra Gear Zip Top delivers exceptional performance in a sleek, low-profile base layer. Made with elastane-infused double-knit fleece, this mock-neck top is built to move with your body to provide all-day comfort, no matter what's in store. A YKK® quarter-zipper front ensures snag-free closure every time, and an interior wind guard provides protection on the mountain's coldest days.