Because there is a difference between Misses and Women’s. So some stores have a 2-20 Misses and and a 12-24 Womens. A 12m is not a 12W. This is not new. But new if you have never shopped in this size range before. Also, it’s about body type. So if you have a smaller torso, waist, and rib cage, the XXL, which is…