- Jil sander's new Jil Sander side metal buckle thong sandals. This modern style sandal is eye-catching and ultra-comfortable. It is decorated with metal buckles on the side, adding a unique charm to the overall look. The thin straps The design cleverly displays the lines of women's feet, making them look slimmer. Upper: Oil-waxed calfskin Lining: Water-dyed sheepskin Heel height: 6.5cm Sole: Italian dyed genuine leather Outsole Size: 35-39 (40 is custom-made and cannot be returned or exchanged),