I'm 6'5", 190 and size 13 feet. Right now, I'm wearing XXL Orvis waders, and so far have been very happy with them. They're made with the seems on the back of the legs, which has made a huge difference in the amount of wear. Since these larger sizes are usually baggier on me, I blew through some of their older models after just a couple seasons from the inside seams always rubbing, but their customer service and return policy has always been good, so I gave them another shot.

The shoulder straps are maxed out as far as they go, and of course they feel a little baggy at times, but it is what it is, and for the most part, they're very comfortable. There's always going to be some compromise, but I'm going on my third season of hard use, and so far no complaints.