The 90s platform sandal makes a comeback courtesy of these chunky flatforms with soles partially crafted with recycled thermoplastic rubber. Talk about cleaning up nice! Sap Shoe Silhouette: WEDGE SANDALS. Sap Upper: SLIDE. Sap Heel Type: WEDGE. Sap Toe Shape: SQUARE. Silhouette: Platform sandal. Toe Shape: Open Square. Heel Type: Platform. Closure type: Slip on. Upper: Textile. Main: Stretch. Sole: Textile. Heel Height: 2. Platform Height: 1.75.