The ION Women's Neo Zip Top is the perfect lightweight, 0.5 mm, long-sleeve top for the best in comfort and style. This top is perfect for mild weather when you want just a bit of warmth retention, protection from the sun or wind and rash protection from your harness or surfboard. It's a major step up from a rash guard, with a body contouring technical fit. It can also be worn as an additional layer under your wetsuit when you need a little more warmth. The Women's ION Neo Zip Top features Flat Lock seams, Sweep Cut, Wrist Tite construction, a Sunglass Loop and a Slip Loop.