NRS 3.0 Ultra Jane Wetsuit neoprene The Ultra Jane's neoprene-lined relief zipper lets you answer nature's call without taking off the suit Who wants to put on a cold, damp wetsuit in the morning?exclusive VaporLoft lining eliminates clamminess and feels soft and warm against your skin 4-way-stretch PowerSpan panels that wrap from the tops of your shoulders to your belt line and along the sides adapt to your movements for unrestricted range of motion and improve fit 3 mm Terraprene neoprene provides outstanding insulation in cold conditions Titanium laminate adhesive reflects heat back to your body, keeping you warmer