TOUGH + COOL + CASUAL Buckle hardware fastens down the side of the BROOKEE kids' engineer boot, a knee-height design with a lug sole for a secure and comfortable step. Kids' lug sole engineer knee boot Side zipper closure 4 decorative buckle straps 1.5 inch heel height 10.5 inch shaft circumference 12 inch shaft height Synthetic upper material Textile lining Synthetic sock Synthetic sole Imported