@Pippinwhite -- Oh, teacher approval is everything. My teacher wanted pink leather and nothing else. Period. I had some white ones, but nope. Pink and pink only.
I cheaped out on practice slippers for home. Then it doesn't matter if you wear leather, canvas, socks or even go barefoot. You can pretty much pick whatever you like for that.
We could choose between pink and white tights, and either a short sleeved or tank style black leotard. That was as much choice as we got in my classes. She was a great teacher, though.