OP
LanceRiley
Contributor
I have a 4th element thermocline suit for warm water holiday diving. It's great on the boat as you don't overheat like you do in neoprene and it also saves from getting sunburn. In the water you do get some physical protection but thermal isn't great.
I'd probably wear a 3mm neoprene shortie over the top of it if the water was in the 70's, especially if I was doing more than a one dive a day.
Will look into the 4th element too.