Just curious to find out little "tricks of the trade" to keep from over heating while donning my drysuit, when it's 90+ degrees outside, but I'm going to dive the bottom of the local quarry which is 42 degrees F. This topic could go for the heavier wetsuits also, I would think. I get cold easily so have to wear very thick undergarments underneath. So far, the thing that has worked for me is to get dressed, zip up the drysuit, go to the beach area, jump in & get, especially my head, wet. I will usually soak for a minute or 2. Not only does this cool me off long enough to get into my hood, gloves,& scuba unit & such, but it also helps to "burp" the air out of the suit, making it easier to descend when the dive starts. One of my buddies will get into his air conditioned car to don his drysuit. Any other ideas?