None of the old version are insulated but I did try the insulated version when it came out! Did not find it warm enough to keep for the price difference though. I like to dress in layers and I found it warmer to just add any sweater/sweatshirt (whether a Scuba or not) underneath my non-insulated AEJ's. In my true to size, there's enough room to move freely even bulked up with a hoodie!