UltraBOOST UncagedThe adidas UltraBOOST Uncaged impresses with a seamless Primeknit upper that wraps the foot like a second skin and offers excellent breathability. Its minimalist design deliberately dispenses with an external plastic cage, creating a sense of lightness while allowing greater flexibility in the midfoot area. The distinctive BOOST midsole delivers effective cushioning and reveals noticeable energy return with every step, making longer distances