Rene Caovilla Ladies Boots. SKU - C11852-040-NA01V213-BLACK LAMB/JET. Color - Black Lamb/Jet Hematite Strass. Rene Caovilla Bonnie Ankle Boots. The Bonnie ankle boots are crafted from leather and feature a round toe, slip-on style, with a zip fastening on the side. They are embellished with hand-applied rhinestones and set on a block heel. Please visit the brand website for sizing information.