Boasting CHANNEL FLEX Upper Body, PLUSH THERMO LITE Infrared and ULTRA FLEX Lower Body, the Phoenix 3/2mm Chest Zip Fullsuit Wetsuit is crafted from Japanese Limestone Nanoprene Lite for superior stretch and warmth. It is built with a Watertight Zipper, Engineered Fit System, Triple Glued and Blind Stitched Seams and FusionX Tape with Nexskin Wrist and Ankle Seals and Water Based Glue.