Demonia Women's Fury-100 Wingtip Mid Calf Oxford Boot Black Nappa / Polyurethane 90% Polyester, 10%Spandex This Wingtip Mid Calf Oxford Boot features a front lace-up perforated details This Wingtip Mid Calf Oxford Boot features a front lace-up, perforated details, a side zip and a 2 3/4" heel.