Sole material Rubber Outer material Polyurethane (PU) Closure type Lace-Up ADVANCED QUALITY MATERIAL - The sexy high heels boots were made of high-quality PU, the outsole is anti-slip rubber, and warm soft linner.Pointed boots are lightweight, durable, non-slip, no pungent smell, we are committed to protecting your feet. UNIQUE DESIGN - The mid calf boots features 3.15 inch chunky heels, wide calf, pointed toe, tiny side cut decoration, convenient side zipper. Wrap your legs with soft leather to keep you warm,the stable chunky heels keep your feet comfortable after a long day of walking. ESSENTIAL FOR YOUR CLOSET - The lace up boots match for everything with your fashion wardrobe. Lace up design and chunky stacked heel adds a sense of fashion.High Heel Boots are mostly neutral colors, which perfectly match your all daily outfits.