3mm Men's NeoSport WATERMAN Step-In Wetsuit Jacket The 3mm Men's NeoSport WATERMAN Step-In Wetsuit Jacket is a durable wetsuit for tough environments such as commercial fishing, boat cleaning, dock launching, and waterway clean-up. You can wear this step-in jacket alone, or pair it with the matching Long John (which is sold separately). *When worn as a set, the wetsuit overlaps at the torso, so a 3mm set gives you 6mm of warmth. Features sealed seams to keep cold water from trickling in, and easy front-zip entry. Manufactured by SCUBA wetsuit legends, Henderson USA, you can rest assured that this wetsuit will last. 1 year warranty.