This is one of the major reason why fat clothing is so economically unviable. The fatter people are the more variance, the greater the need for different cuts and patterns to try to cover all the different ways that fat gets stored on the body. The result is clothing that's just a bunch of tarps. There is no way to make this cheaper. You're never gonna get "cute" clothes to cover your size 28 pile of cellulite because they're always going to be ill-fitted, and even if you go to a tailor you're still fitting for a pile of cellulite that doesn't look good no matter WHAT you cover it with.