men axis os 3 2Introducing the Xcel Men's Axis OS 3 2. With a traditional back zipper and flatlock seams, the Axis Flatlock is an excellent wetsuit that is ideal for milder temperatures. Features: back zipper Texture Skin Flatlock seams DuraFlex knee panels Smooth skin neoprene (Texture Skin) offers excellent wind resistance and is ideal for outer chest panels, hoods, and other areas of the body exposed to the wind that would otherwise lose heat quickly.