On Running Cloud X 4 Black Eclipse

The Cloud X 4 continues On’s tradition of marrying lightweight engineering with a sleek, low‑profile silhouette that has become a staple on both the track and the streets. Cloaked in the Black Eclipse finish, the shoe presents a seamless, matte surface that highlights the brand’s signature CloudTec® cushioning while keeping the eye firmly on its understated elegance. Featuring a responsive mid‑sole built from engineered mesh and a reinforced heel counter, the model also incorporates the proprietary Helion™‑infused outsole for added grip on varied terrain. Its appeal lies in the quiet confidence it offers—delivering high‑performance comfort without compromising the clean aesthetic that has earned the Cloud line a loyal following.