Cole Haan Men's Zerogrand Sport Chukka Boot Leather The Cole Haan&reg; Zerogrand Sport Chukka offers impeccable style for your contemporary weekend look. Leather and textile upper. Lace-up construction. Back pull-tab for easy wear. Round toe. Textile lining and footbed. Rubber sole. Imported. Measurements: Weight: 1 lb 3 oz Product measurements were taken using size 11, width D - Medium. Please note that measurements may vary by size.