Item #: 1751833 These are an authentic pair of GIVENCHY Grained Calfskin Shark Lock Biker Knee Boots 39 in Black. These stylish knee-high boots are crafted of black grained calfskin leather. They feature a stunning 4.5-inch wedge heel and polished silver hardware. Follow this item for alerts. Givenchy is a registered trademark of Givenchy. FASHIONPHILE is not affiliated with Givenchy.