Chase new PRs in the adidas Ultraboost 5X. These revolutionary running shoes feature LIGHTBOOST foam, providing consistent energy return that keeps you feeling fresh from your first step to your last. The innovative Torsion System, positioned between the heel and forefoot, ensures stability and a smooth stride, no matter the distance or pace. Details: Upper: Hyper anatomical PRIMEKNIT upper creates the ultimate fit while MOLDED EXTERNAL HEEL SUPPORT is optimized to provide support where it's needed most. Midsole: Made to make the most of your movement, LIGHTBOOST is adidas' highest energy return cushioning system utilizing Boost. Outsole: The world-class grip of the CONTINENTAL OUTSOLE™ provides that perfect traction and transition while the TORSION system provides next-level support all the way through your natural gait.