These fit me snugly without squeezing the toes together as is usually the case in most ballet flats. With other ballet flats, even if they don't feel tight, the big toe is pushed in somewhat at an angle. I'm trying to keep my toes properly aligned for stronger foot arches and these do the job perfectly.
These boots are what I'd been looking for. I can spread my toes out in the ample toe box, they're not too stiff so as to prevent fluid foot movement and they have plenty of grip. One minor gripe is that these Vivobarefoot boots in general come in very small sizes. I had to order this two sizes higher than my normal size!
This is very good for the price and it does the job. My one complaint is that it took me ages to figure out how to unfold it; I was afraid of forcing it and breaking it. Some basic instructions would have helped.