For size reference - I'm 5' 11", 190 lbs with a 48" chest and 36" waist. The pressure suit is a Sette XL and it's is just a bit snug. Because it's mesh, there is some stretch there...
As far as the boots go:
Boots
The foam-cast overboots basically lock and float on my Magnum's. I did add a very small closed-cell foam "kick pad" at the heel to minimize the noise for the parade. As long as you leave a good 1/4" - 1/2" float between the bottom of the armor boot and the ground you should be OK. As you can see from the DCon parade pics it's really not noticible...

Thanks!
"Who is Ragnar Danneskjold?"