Cool Contours Shoe Liners
Hidden shoe liners
Ergonomically designed for left and right foot
Silicone on heel for stay-up support
Moisture-wicking, stretch modal blend
Fits women's shoe sizes 6-10
works for ballet flats
just enough to hide in ballet flats, works for me. I wear a 7, ordered s/m an covers toes exposing toe cleavage.