The intervals, tempo runs and chilly morning sessions paid off. you made it to the starting line. all that's left is to kick into gear and go the distance in these adidas running shoes. their mesh upper is so lightweight you'll barely feel it on the course. lightstrike cushioning gives a responsive and snappy ride. this product is made with primegreen, a series of high-performance recycled materials. 50% of upper is recycled content. no virgin polyester.