Product Details It's 80 degrees out, you're riding the bull and the guide goes full throttle into a massive wave of chilly water, you may want the NRS Women's HydroSkin 0.5 Short-Sleeve Shirt on. Designed to keep your core warm on those hot days in cold water. Premium nylon-spandex exterior sheds water and provides optimal stretch while the soft, smooth and hydrophobic interior provides insane next-to-skin comfort. NRS Rashguard panels under the arms for increased breathability. 0.5 mm Terraprene™ neoprene with heat-reflecting titanium locks in your body's warmth. Form fit restricts water entry, enhancing the insulation properties. Paddler-specific cut combines with friction-free seams to enhance paddling performance and comfort.