Running shoes with responsive cushioning 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 Sole Material: Rubber Closure: Lace-Up Heel Type: No Heel ADIDAS PRIMEKNIT: Foot-hugging upper that wraps the foot with a supportive fit to enhance movement BETTER RUBBER: Continental Better Rubber is an innovative, sustainable compound made from 70% natural rubber, 20% virgin rubber and 10% conventional rubber; Officially licensed Continental product PARLEY OCEAN PLASTIC: This shoe's upper is made with a high-performance yarn which contains at least 50% Parley Ocean Plastic — reimagined plastic waste, intercepted on remote islands, beaches, coastal communities preventing it from polluting our ocean.