Profile Designs MN Marlin Full Wetsuit (Black) The Profile Design Marlin incorporates design features normally found on much more expensive suits. And inlcudes lightweight, Yamamoto #39 stretch neoprene with hydrodynamic coating, YKK zippers, and glued/blindstitched seams Yamamoto #39 SCS* Nano, reduces drag by 97% over conventional wetsuit neoprene. 5.0 mm torso and thigh for perfect body position in the water. Ribbed SCS* under 1.5 mm arms allows maximum chest expansion and full arm/shoulder extension. Low SCS lined collar with 2.0 mm SCS* neck/shoulder gasket adds flex in shoulders and improves collar fit YKK Reverse Zipper pulls UP to open and release for quick and simple transition