Wittner Black Leather Perforated Open Toe Slingback Wedge Sandals Size 38 Black leather upper with perforated laser-cut detail on the vamp. Open toe silhouette with a slingback strap and silver-tone buckle closure. Stacked-look wedge heel with a Spanish resin sole. Tan leather lining and insole, Wittner Australia branding inside. All leather construction. Excellent condition!