adidas 5-Star 2.0 Low J - Boys' Grade School Known as the game's lightest cleat, the adidas adiZero 5-Star 2.0 is back to help you blaze by the competition and its even lighter than it was last year. The upper uses SprintSkin II construction, inspired by the adidas Prime track spike. It not only reduces the overall weight of the cleat, but provides support through an external layer of TPU. Internally, the SprintWeb support frame provides stability during quick changes in direction. In the adiZero 5-Star 2.0, you'll be standing on adidas' revolutionary SprintFrame outsole, covered by a molded PU sockliner that will keep your feet comfortable throughout the game. The outsole is engineered for balance, with geometric ridges for structure through the midfoot. This gives the perfect amount of football-specific stiffness, while still allowing the forefoot to flex as you accelerate. A heel cup locks your foot in place, so there's no slipping on the field. Lastly, triangular TraXion™ studs provide acceleration and straight-away speed, with multidirectional grip on cuts. This design can be used on synthetic or natural surfaces. Wt. 6.9 oz.