Black Floral Lace Back Zipper Single Sole Laced Up Over The Knee Boots. These boots feature a floral lace look, suede material, back zipper, peep toe design, over the knee look, laced, single sole, Heel measures about 4.5 inches. Boot measures about 28 inches from top to bottom. So buy this Over The Knee Boots. Just $25.99 for Black Floral Lace Back Zipper Single Sole Laced Up Over The Knee Boots.