Sleek enough for work, yet casual enough for everyday. These versatile and comfy sneakers mean serious business. Sap Shoe Silhouette: FASHION ATHLETICS. Sap Upper: LACE UPS. Sap Heel Type: FLAT OR NO HEEL. Sap Toe Shape: ROUND. Silhouette: Low top sneaker. Toe Shape: Closed round toe. Closure type: Laces closure. Upper: Synthetic. Main: Nubuck. Sole: Leather.