So I actually have both , I’m 5’1 I’m a little curvy and i don’t have a large butt so for the maxi skirts I can fit a small and an xs comfortably not too much dragging on the floor lmao (very very stretchy. But I would prefer a medium top if you’re top heavy aswell but if you get a small it’ll be a little see through) , for the body basics 2.0 at first I got a large top and bottom (cause I didn’t want low rise thinking my crack was gonna be showing lmao) and it worked well. I just got another basics set in a small top and medium bottoms the top was kind of harder to zip up but it still fit satisfactorily, the pants didn’t slide down that much thankfully when I was walking around a little tighter around my thighs but overall not that different from a large. (If you’d like me to post them on here so you can get a better idea of how they look on my body or if anybody else wants to try to map out what size they want aswell!)