Our lightest Ultraboost shoe ever, made in part from Parley Ocean Plastic. More comfort, more speed, more performance. It's a virtuous circle. Add dynamism to your run with running Ultraboost Light. The lightest and most dynamicUltraboost created to date. It is also designed with a lower carbon empreinte than previous versions. The magic lies in the Light BOOST midsole, a new-generation adidas BOOST technology with even more energy return. This pair is specifically adapted to women's morphology, with a narrower heel and lower instep curve to avoid heel friction and blisters.