- Jil sander's new spring and summer square-toe shoes have a unique square-toe seam design and a metal ankle buckle decoration. They are fashionable, low-key and elegant, and they look great! It's a bit hard to resist, soft and comfortable and not easy to scratch your feet! Upper: Sheepskin Lining: Sheepskin Sole: Italian thickened genuine leather outsole Size: 35-39 (40 is custom-made and cannot be returned or exchanged),