Elevate your everyday rotation with these easy-to-wear slip-on shoes that offer the perfect balance of polish and comfort. Sap Shoe Silhouette: FASHION ATHLETICS. Sap Upper: SLIP ONS. Sap Heel Type: FLAT OR NO HEEL. Sap Toe Shape: ROUND. Silhouette: Slip-on sneaker. Toe Shape: Closed round toe. Closure type: Slip on. Upper: Leather. Main: Smooth. Sole: Rubber. Color: white