Mystic Star 4/3mm Back Zip Mens Winter Wetsuit I Large I Navy  The Mystic Star 4/3mm Back Zip Mens Winter Wetsuit is a great all year round suit! It is comfy, light and durable. The suit provides great insulation properties to keep you toasty when the water gets chillier. It is soft, with loads of flex - the perfect suit for all your adventures, no matter the season. Features  GBS Seams Critical Taping Inside Easy Entry Aquabarrier Polar Lining Chest & Back M-Flex 50% Soft Touch 50%