i have the pinnacle elastopreane 7 mill through out...and on my check out dives in a quarry i took it to 46 ft at 39 degrees and had no problems at all i also dive dutch springs which is another quarry and at 70 ft had no problems at all ...just my opinion pinnacle makes probably the best (wetsuit)...just my opinion though...but i can atest to the warmth that ( I ) feel..and it fit’s like a glove...hope this helps