This special iteration of the Ultra Boost 2022 get a major Stella McCartney makeover that completely transforms the entire look of the model. The highlight of the Stella McCartney x adidas Ultra Boost 2022 is without a doubt the newly added exterior cage, which wraps and supports the entire upper. The design of the cage comes with inflated parts that are strategically scattered throughout. Elsewhere, underneath the cage you will find a knit bootie that extends passed mid-top height.