O'Neill Hammer 2mm Long Sleeve Chest Zip Wetsuit 2018 The O'Neill Hammer 2mm Chest Zip Shorty wetsuit in the long sleeve version is a high quality wetsuit at an incredible price. The suit features 100% super stretch neoprene which means you get complete freedom of moveemnt in the water without restriction. It also means that as you are moving freely the suit will fit better thus you will stay warmer for longer. Certainly worth considering for summer 2018. Features 2mm Neoprene 100% UltraFlex DS Smooth skin chest & back Flatlock Stitched (Breathable Seams) Glideskin neck facing F.U.Z.E Entry - Front Upper Zip Entry #10 YKK Zipper O'Neill Hammer 2mm L/Sleeve Chest Zip Shorty Wetsuit 2018 - Blue