Upper: Leather or suede. Firm yet flexible removable microfiber-covered EVA orthotic insert. Heel Height: 0.375" Platform Height: 0.125" TPR outsole. Biomechanically designed to hug your arches Vio-Motion Technology helps support natural alignment from the ground up. Received APMA Seal of Acceptance. | Vionic Women's Klara Ballet Flat with Arch Support in Black Leather, Size 6.5 Elegant Leather Ballet Flats With Ortholite Insole, Medium Width Leather Flats For Formal Occasions, Formal Flats With Ortholite Insole, Black Leather Ballet Flats With Cushioned Footbed, Leather Ballet Flats With Arch Support, Leather Flats With Arch Support And Almond Toe, Leather Almond Toe Flats With Arch Support, Leather Flats With Arch Support, Leather Flats With Ortholite Insole And Medium Width