adidas 

Ultraboost 21 low-top sneakers

Meet the adidas Ultraboost 21 sneakers, the pinnacle harmonization of weight, cushioning, and responsiveness. This low-top pair is constructed with a Torsion System that provides a 15% increase in forefoot bending stiffness for a more responsive run, and Primeblue a high-performance recycled material made in part with Parley Ocean Plastic which provides more flexibility.