The adidas Adizero Prime X Strung gives you all of the cushion and bounce you crave with a fine-turned strung upper that lets you go the distance. Designers wove the upper thread by thread based on athlete data for the long distance runner. The result is a flexible, breathable and lightweight one-piece upper that fits around your foot like a cocoon. Plus, it looks really cool. The STRUNG upper is fused to a Prime X outsole that contains three layers of LIGHTSTRIKE PRO cushioning, which provides a ton of energy return to help you run for miles and miles. Adidas packed the advanced cushioning around carbon-infused ENERGYRODS that provide a lightweight stiffness for efficient energy transfer, so running feels effortless. You will never want to stop running in the adidas Adizero Prime X Strung.