- Jil Sander's new Chelsea thick-soled short boots. The upper is naturally rich in unique luster, and the leather itself has slight wrinkles. This highlights the Gothic style with inherent temperament. It is simply not too handsome! A must-have item for fall and winter! Upper: calfskin, lining: cowhide, sole thickness: about 4cm, sole: original foam rubber outsole, size: 35-39 (40 customized, non-refundable),