Step up your weekend running game in these adidas Alphaboost shoes. Lace them up and hit the track, the local park or the treadmill. A Bounce midsole makes the ride soft and springy. BOOST on the heel returns energy as you go, so you always have something left in the tank for the end of your run. Made with a series of recycled materials, this upper features at least 50% recycled content. This product represents just one of our solutions to help end plastic waste. 100% Polyester.