Mystic Star 5/4mm Back Zip Mens Wetsuit | Army | Large The new Mystic Star 5/4mm Back Zip Mens Winter Wetsuit is a warm and comfy entry level suit. That being said for an entry level suit it has a lot of great features - being durable, flexible and super warm! It is made from 100% M-Flex neoprene, lined with Fox Fleece on the chest and back. As most of Mystics wetsuits it has a lot of features to keep the water out. With GBS, junction taping on the inside, glideskin double neck construction and an overhead backup shield it should do a good job of keeping the water out ultimately keeping you warmer for longer. The Star is an excellent wetsuit for the winter.  Features GBS (Glued Blind Stitched) Junction taping inside Wind Mesh chest panel Glideskin double neck construction Hex-tech kneepads Non slip cuffs Overhead backup shield Lining saver Back-zip Fabrics M-Flex (100%) Fox Fleece in chest & back