Any time you're on your feet is a good time to wear the adidas Ultraboost. These juniors' shoes pack all the performance techs that runners love into a design you'll want to wear outside of gym class. Beyond looks, its superpower is comfort from the soft feel of the adidas PRIMEKNIT upper to the incredible energy return of BOOST. This shoe's upper is made with a high-performance yarn which contains at least 50% Parley Ocean Plastic - reimagined plastic waste, intercepted on remote islands, beaches, coastal communities and shorelines, preventing it from polluting our oceans. These fit true to size.