I am surprised no one mentioned the cadillac of dry suits. CF200 by DUI. I have one and when this one wear out (in about 40 years) I will by buy another one. Rock boots are the only way to go.
I wear a two piece under garment. A farmer john style garment. It gives me a double layer of protection on my chest area. It also is very nice on land too when it is cold and windy. I simply pull up the collar and and put a ski cap on and I am toasty. I never had a problem with it pulling up. Mine has an elastic drawstring. For thoses who are anatomically challenged, it could be a problem.
I wear a two piece under garment. A farmer john style garment. It gives me a double layer of protection on my chest area. It also is very nice on land too when it is cold and windy. I simply pull up the collar and and put a ski cap on and I am toasty. I never had a problem with it pulling up. Mine has an elastic drawstring. For thoses who are anatomically challenged, it could be a problem.