This year's iteration of the Ultraboost is the product of 1.2-million-foot scans with an all-around redesign to fit the female shape better. Improving in every way on the ’21 release, this re-engineered offering features a Primeknit upper constructed from 50% recycled Parley Ocean Plastic and 50% recycled polyester. The upper then rests on a full-length BOOST midsole for optimal energy return on top of a rubber outsole.