Heading to Cozumel from 12/26-1/2 and was curious what other divers use for wetsuits that time of year. I saw on the FAQ sticky that water temps are 78-80 so I was thinking about just a 2-3mm shorty. I have a full 3mm, that is a little too tight (getting old and fatter, LOL!)
I'll be there the same time I was there last March when the water was unseasonably cool in the 78-80 range. I get cold easily and I wore a Lavacore vest under my 2.5mil suit and a Neosport 2mil zippered vest on top and was nice and toasty.