The inspiration for Rolly Giny Biker boots are motorcyclists and sports tires. Made of smooth black leather, they feature a chain on the instep, while the notched soles ensure proper grip on difficult terrain. Upper: 100% Leather - Lining: 100% Leather - Insole: Comfort 100% leather - Outsole: Rubber - Heel: 5.9 cm - Upper: height 31 cm Circumference 34 cm in size 37 - For more info and photos contact 3274215101