Star Roller is the solution for even the most challenging conditions. To prevent ankle injuries, the ankle part of the shoe is lined with viscoelastic Memory foam padding. The laces are adjusted by turning the dial; the lace mechanism in turn laces the shoes evenly, providing support at the ideal point. New and improved FlexStep® soles maintain their flexibility in sub-zero conditions even better than before, improving the traction of the soles. Metal-free toecaps, thick lining and thermal insoles of the Star Rollers will keep your feet warm. Penetration-resistant steel midsoles provide the best protection against sharp objects.