Featuring a sleek combination of grey and 'Core Black' hues, the adidas Ultra Boost 4.0 'Grey' sneaker effortlessly enhances the stretchy textured Primeknit upper. Through the incorporation of cutting-edge technology, this shoe easily conforms to the contours of your feet while in motion. This is made possible by the addition of a molded heel counter, which promotes the Achilles' freedom of movement, resulting in a more organic stride. Moreover, this stylish sneaker is further equipped with a responsive midsole cushioning to provide lightweight comfort, along with a flexible outsole for added flexibility.