Mystic Star 5/4mm Back Zip Ladies Winter Wetsuit in Teal | Medium The Mystic Star 5/4mm back zip wetsuit is a high quality suit that is bursting with features to keep you warm and flexible in the water even in the coldest of winter months. It features Fox thermal lining which retains your body heat so you can stay in the water for longer. It also uses M-Flex neoprene which is a 100% super stretch material so when you move the suit moves with you. It is incredibly comfortable to wear and proves to be a best seller every year.  FEATURES GBS - Stitching method whereby the panels are first glued together and then only stitched halfway through the fabric instead of fully perforating it, which makes the seams waterproof. Critical taping internally - A neoprene taping is positioned on the critical seams of the suit. This prevents water from coming through the seams on critical points of the human body. Mesh neoprene chest panel - Closed cell neoprene with one side of fabric lamination. The outside of the mesh neoprene offers a better protection against wind chill.  Hex-tech kneepads - The kneepads are made of a 4way Super-tex fabric. This is a durable fabric especially designed for protection. Velcro ankle closure straps - Velcro ankle straps to tighten the leg cuffs.  Lining saver - Soft Velcro piece attachment on the inside of the suit to fix your collar tag. This will prevent damaging the inner lining. Overhead backup - A neoprene back panel with collar, prevent water from entering through the zipper and neck. Back zip - The B-ZIP is the classic wetsuit closure, due to the wide zipper opening on the back the entry is very easy. Depending on the model the zipper is often double lined to prevent water entry throughout the zipper. Glideskin neck construction - The reduced thickness of the neck construction makes it easier for the neoprene to follow the curves of the neck with less pressure. The neoprene feels like a second skin, while the glideskin inner lining enables an excellent water closure. FABRICS M-Flex (100%) - M-Flex is a very good flexible neoprene. M-Flex stands for high quality neoprene with an awesome stretch ratio. Fox Fleece Front & Back Panel - Soft, smooth & incredibly warm.