Wind In Your Sails Inspired by efforts to save the ocean, the adidas Ultraboost 4.0 DNA uses recycled material made partly with Parley Ocean Plastic. The result is a high-performance upper material called Primeblue which is a mix of adidas’ Primeknit and ocean waste. The Primeblue’s sock-like fit ensures great breathability and comfort. The Boost midsole converts every stride you take into responsive energy. The flexible rubber outsole and heel counter ensure great stability and support. Lace up and take off into the blue with these new shoes. adidas Ultraboost 4.0 DNA features: Primeknit upper Textile lining Lace closure Boost midsole Midfoot cage and supportive heel counter Continental rubber outsole