Interwoven straps and buckle detail make these flat sandals the new and upgraded take on your dad's fisherman sandals. Sap Shoe Silhouette: FLAT SANDALS. Sap Upper: FISHERMAN. Sap Heel Type: FLAT OR NO HEEL. Sap Toe Shape: ROUND. Silhouette: Flat sandal. Toe Shape: Open round toe. Closure type: Buckle closure. Upper: Leather. Main: Smooth. Sole: Rubber.