Kiwi Heel Liners Kiwi Fresh Smiling Feet Gel Heel Liners provides cushioning protection from fashion shoes which often cause discomfort and rub against your sensitive heels. They also improve shoe fit by preventing heels from slipping in and out of shoes. Dermatologist tested. DETAILS: KIWI® Shoe Passion Heel Gel Liners prevent your heels from slipping out of your shoes and from rubbing against the backs of your shoes They are designed to mold to the shape of your heel and to protect skin from friction and pressure Virtually invisible to fit all your favorite shoes