It's hard enough being a curvy dancer in the classroom, but shopping for dancewear is just as difficult.
I got these in a large (I'm 5'1" 37"-27"-39" for reference) and they were still too small!
The seams started to pop during the second dress rehearsal of me wearing them.
And they rode up worse than any dance short I've ever worn.
Also, I prefer cotton boy shorts and bike shorts because they ride up less and breathe more than nylon.
These serve their function well, but I wish I had gotten a size up.
And I think that a person who in the normal world is a small/medium shouldn't have to get an extra large in dancewear (but that's a different issue, I'll get over it)