- Jil sander Jil sander 23 new square block heel boots. The upper is naturally shiny but not ostentatious in solid color. It has both temperament and sexiness and completely hits the hearts of girls! It perfectly increases the height of the legs and is extremely slim and trendy...and also modifies the shape of the legs. Upper: calfskin, lining: sheepskin, heel height: 8.5cm, sole: Italian genuine leather outsole, size: 35-39 (40 customized, non-refundable),