Michael Kors Lottie ankle boots. These stylish boots are made of smooth black leather with elastic side panels and feature a silver-tone Michael Kors logo accent on the block. Vachetta leather upper with a rubber sole and polyester lining. They are a slip-on Chelsea boot style with an almond toe shape and elasticated sides for an easy fit. The boots have a stacked block heel, typically around 3.5 inches high. The Lottie boots are noted by users for being comfortable enough for everyday wear.