I am looking to purchase new undergarments. I have tried the Dive Rite Primaloft - though that was in a swimming pool and I have used the Weezle Extreme (borrowed from a friend). The Weezle is a bit more expensive due to the exchange rate for the BP and the addition of a tariff by Uncle Sam. My initial thoughts are that the Weezle is thicker, but compresses well. The Dive Rite was thinner but very comfortable too. I can't say about the warmth comparisons though. I get cold easy and dive in quarries with temps in the 40s and 50s and sometimes into the high 30s. I am diving a Whites Fusion drysuit. Would love to hear feedback on these two undergarments.