W4 5mm is the latest back-zip wetsuit from Waterproof. After 28 years of experience of making wetsuits Waterproof has put all of their knowledge into this hi-quality suit with an eye-catching silverish retro/futuristic look. The 3D anatomical design, with pre-bent arms and legs with stretch panels and gender specific construction ensures a comfortable fit and a relaxing body position in the water. 3D moulded rubber kneepads is perfect for the diving instructor who spends a lot of time on his/her knees in the water while teaching. Double smooth-skin seals at arms and legs, adjustable neck and a 10mm spinepad with an extra seal at the backzipper keeps the cold water out. All zippers in top class Vislon #10 from YKK. The back zipper Bronze slider ensures trouble-free function for many years. ToughTex panels at elbows and knees, Bonded HiQ Nylon Thread and 100% CR Neoprene in all panels.