The UltraBoost X is a running shoe that prioritizes the support and comfort of the runner. With its flexible Primeknit material and a distinctive X-shaped cage, it provides excellent arch support while allowing the midfoot to remain exposed. In 2017, a special edition was released exclusively for women, featuring a delightful 'Trace Pink' colorway throughout its stretchy upper, cage, and heel counter. The shoe not only offers style but also functionality, thanks to the white Boost cushioning and grey rubber outsole, which provide both responsive cushioning and a contrasting touch.