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The Ultra Boost X combines Boost technology with an innovative design that was especially created for women. The Primeknit upper encloses the foot precisely thanks to its special arch-of-the-foot construction. The reactive Boost midsole enables an energetic run.Sophie Mannstein - Keller Sports Pro
The STRETCHWEB rubber running sole delivers a natural running feel. As well as this, you benefit from grip on both dry and wet surfaces alike. The TORSION® SYSTEM enables optimised freedom of movement at the heel and forefoot.
The breathable Primeknit upper adjusts perfectly to the shape of the foot to provide support and ultra lightweight comfort. The upper material is detached from the sole around the arch area, which means that the shoe adapts to the natural movements of the foot.
The Boost midsole retains energy during every step and then returns this energy back to you. The more power you put into it, the more energy you get back.
With the Ultra Boost X nothing can stop you. The shoe supports you with Boost technology so you can always push your limits. As well as this, the Primeknit upper and innovative design deliver maximal comfort. image description