I have been a Harvey fan for many years,25 at least, and they are made tough. BUT Frank at pioneer is selling suits(no marked mfg)that use a closed cell style,they do require a little more weight, and I've never even fired up my wetsuit heater in over 5 years since I got it. Extremely ez to get in/out and very soft too. The MOST comfortable suit I have even worn. And go to the dollar store /hardware store/Harbor Freight and just get some knee pads,cut up a inner tube to make your own,glue rubber to your knee protectors on the suit. GET A PEE ZIPPER is the absolutely most important part of a new suit I can think of. I've spent years clawing at my suit desperately trying to extracate myself from it to do my duties and NEVER PEE IN YOUR SOUP,#2 IS A NIGHTMARE-tons a au 2 u 2 -John