All About Slingback Heels: How to Choose and Style CHARLES & KEITH CA Patent Slingback Heels Hardware Slingback Heel Mesh Slingback Heels For Women Factory Patent Slingback Heels. Pre owned Gucci black leather slingback heel featuring square toe, gold tone hardware at vamp, adjustable slingback block heel, and adjustable ankle strap. Includes original dust bag. Details: Colour: Black Gold Materials: Leather Made in Italy Condition: Very Good Minor wear on outsole, minor scuffs on heel. Estimated Size: IT 37. 5 3. 5" Heel Height