The adidas PRIMEKNIT upper provides a snug, supportive fit, adapting to every step. BOOST midsole offers unmatched energy return and comfort. Stretchweb outsole with Continental Rubber ensures superior traction in wet or dry conditions. ADIDAS PRIMEKNIT: Foot-hugging upper that wraps the foot with a supportive fit to enhance movement TORSION SYSTEM: Support between the heel and forefoot for a stable ride CAN'T STOP. WON'T STOP: The incredible energy return of adidas BOOST is created by fusing together energy capsules, giving you the power to keep your feet moving STRETCHWEB WITH CONTINENTAL RUBBER OUTSOLE: Stretchweb outsole flexes naturally for an energized ride, and Continental Rubber gives you superior traction; Officially licensed Continental product