All of it is plus size. Some just felt the need to micro-categorize because they are plus size but they are not a 6XL and they want to make that distinction. Mid-size is plus but can still find a lot of their clothes at a standard store like H+M or in the straight-sizes at Target. Then there is fat, super-fat, and infini-fat. 🙄 Fat is like 16-20 or 22, harder to find clothes but can shop in a specialty shop like Torrid. Superfat is size 20 or 22-30, specialty shop/ online only specialty shop. 1/