Mephisto - Zulie (Black Leather) - Women's: Zulie is a sleek boot that you can dress up or down. Beautiful suede or calfskin leather upper features a full, inner side zip for easy wearability. Cushioned footbed with tiny air channels deep inside the sole give you Air Jet technology. This circulates the air inside the shoe while you walk. Lightweight, Caoutchouc outsole with good grip profile. 4-point shock absorber system heel protects your feet from damaging jolts and vibrations. Sacchetto construction gives you added flexibility and comfort.