Speed limit, what's that? Go faster and faster! Achieve the speed you desire with the adidas Adizero Boston 12. Power, flex, support, these masterfully engineered and aesthetically refined silhouettes deliver it all with every footstrike. You'll never run out of steam anymore. Featuring an explosive combination of a Lightstrike midsole, a Continental rubber outsole, and ENERGYRODS 2.0, these runners keep you progressing forward, churning out mile after mile. Up top, a breathable mesh upper promotes airflow, keeping you comfortable for the long haul. Find your fastest time with the adidas Adizero Boston 12. adidas Adizero Boston 12 features: Synthetic and textile upper offers a sporty look. Textile insole provides step-in comfort. Lightstrike midsole brings the perfect combination of lightweight cushioning and responsiveness. ENERGYRODS 2.0 ensures optimum support and stability while limiting energy loss at toe-off. Continental rubber outsole delivers superior traction and grip in wet and dry conditions.