If you can dream it, you can build it. Just look at adidas Ultraboost shoes. They changed the game in 2015 with their responsive Boost midsole, foot-hugging adidas Primeknit upper and striking style and continue to drive running technology today. This pair features LEGO® brick 3-Stripes to celebrate of all the builders, dreamers and risk-takers who are changing the game in their own way. Step in and dream big on the pavement. Your best run ever starts with that first step.This product is made with Primeblue, a high-performance recycled material made in part with Parley Ocean Plastic. 50% of the upper is textile, 75% of the textile is Primeblue yarn. No virgin polyester.