Having a Hutt-like physique myself, I know what a pain it is to find clothes in the right size: 3X-Large is the smallest I’d normally wear, and I prefer 4X- or 5X-Large if I want a looser, more comfortable fit.
One of my regrets at GenCon was when someone would come by and ask if we had anything larger than 3X-Large and I had to tell them that we didn’t. Still, I promised that we’d check with our manufacturer about larger sizes, and the good news is that our reprint of Redshirts Local #1701 includes 4X- and 5X-Large shirts.
When we do reprints of Table 6-9: Galactic Innuendo and Spider Queen, we’ll make sure we add some of these larger sizes there as well.