Leather Vulcanized Rubber Sole Sneakers By Jil Sander. Featuring: Low-top Lace-up Fastening Round Toe Leather Insole Vulcanized Rubber Sole Jil Sander Logo Branded Insole Composition: Upper, 100% calf leather Lining, 100% calf leather Inside, 100% calf leather Sole, 100% rubber