Vionic, Slimfit Orthotic Inserts . Podiatrist-designed as a cost-effective alternative to custom-made orthotics.. Supports the foot via a built-in rear-foot angle which helps realign the foot to its natural positionSupports the metatarsal bones, and helps provide effective relief from the ball-of-foot pain, metatarsalgia, Morton's Neuroma, as well as painful bunions, corns and calluses.Adhesive pad on bottom prevents movement in shoes with higher heelsfits most casual and dress shoesNot recommended for heels over 3 inches