White mules. Synthetic upper, lining and sole. Heel is approx. 7.8cm. Size 8 is an EU39. This shoe runs true to size. Open square toe, and back design. Thin straps across vamp. Slip-on style. Shaved mid block heel. You're favourite classic mule, with a twist! The BILLINI Unika Mule is a classic mule with thin straps on the vamp, a square toe design, and a wooden-look mid block heel. Style these with your favourite dress and gold hoops.