Crocodile Embossed Calf Leather, Hand Built Argentinean leather sole with a rubber protector on the sole for better grip while walking. These Derby Boots are made of high-quality Italian full-grain leather uppers & have brilliant ease of use with a lace-up featuring crocodile style and fine Argentinean leather sole. These Boots are crafted to reflect a unique royal design and style. A trendy and versatile winter boots, they are a combination of authenticity and fashion.