Ballet Flat's Don't Support Your Arch
Flats Can Make Arches Ache
The reason your feet hurt while wearing ballet flats is they offer little to no arch support. If you have flat feet, wearing this type of shoe will hurt less, temporarily. But if your feet have more of an arch, they'll thank you if you slip the Slim 3/4 Orthotics into them to provide more arch support. Look for ballet flats with elastic around the top. They grip your foot better.