The Mercury caged sandal is fierce enough to stand the test of time! Synthetic upper. Exposed heel with adjustable buckle strap at ankle. Open toe on a cutout silhouette. Smooth man-made linings. Wrapped heel. Synthetic sole. Measurements: Heel Height: 4 in. Weight: 7 oz. Shaft: 4 1⁄2 in. Product measurements were taken using size 7.5, width M. Please note that measurements may vary by size.