The Luigino Kid Challenge is a low-profile boot that gives maximum performance for all types and styles of inline speed skating. This boot is sized 2-5 and that means the sizing is completely adjustable for children. Thermafiber, Microfiber lining, and Carbon Fiber, all with AquaTech Technology–make the Kids Challenge boot fully heat moldable to get it perfect. Made with BFT (BareFoot Technology) for maximum comfort while skating. The Vertical Mounting slots secure the frame to the boot, and Closed-cell ankle padding reduces pesky blisters during the break in period. Luigino’s Nano Buckle is attatched to this boot to help ensure that this boot does not slip or come off while speed skating.