This 4/3mm Women8217;s XCEL AXIS Back Zip Fullsuit is a stylish, functional, and performance-driven cool water wetsuit! Thanks to the 100% performance stretch neoprene along with the Superprene Japanese Limestone, this fullsuit is stretchy and comfortable. Other features include: a watertight back zipper, durable sealed seams with FusionX taping in stress points, the new Thermo Plush Lite Infrared chest lining which has heat-generating yarns which adds a lightweight warmth to the suit, a nylon collar and durable kneepads, and an engineered fit system.