Nike MVP Keystone 3/4 BG - Boys' Grade School Nike's MVP Keystone 3/4 is ideal if you're a baseball player who's looking for a supportive, versatile, low-cut cleat for all conditions. It's built with a synthetic leather upper for a great fit and feel. A Phylon™ midsole and EVA sockliner add lightweight cushioning and comfort. The MVP Keystone has an environmentally-preferred rubber outsole with great traction and durability. The 12-cleat configuration includes six supplemental cleats to enhance forefoot traction. The Power Channel allows for longer surface contact with the ground, giving your step more power. A toe bumper adds toe-drag protection. Wt. 8.2 oz.