The Callie Nubuck Sandal features a high block heel, adding some class and sass. This chunky slip-on sandal is perfect to spice up any outfit. Size 8.5 fits more like an 8. Materials: Nubuck Leather | Cow leather lining | Cow leather outsole Heel Type: High Heel Heel Style: Block Closure Type: Slip-on Toe Style: Round toe Counter Type: Opened Heel Height: 4.1in | 105mm Rubber patch at the heel.