>>63117708They aren't ballet shoes per se.........but they are called as ballet flats.
Here is the wiki
https://en.wikipedia.org/wiki/Ballet_flatBallet flats are women's shoes for everyday wear which are similar to/inspired by a women's ballet shoes, with a very thin heel or the appearance of no heel at all. The style sometimes features a ribbon-like binding around the low tops of the slipper and may have a slight gathering at the top-front of the vamp (toe box) and sometimes a tiny, decorative string tie. Ballet slippers can be adjusted and tightened to the wearer's foot by means of this string tie.