The On Running Cloud X 4 “Black Eclipse” (Women’s) delivers powerful performance wrapped in a sleek, all-terrain aesthetic built for training and daily wear. Its engineered mesh upper in deep Black tones ensures lightweight breathability and adaptive support, complemented by Eclipse accents that add depth and sophistication. The shoe integrates On’s advanced CloudTec midsole with Helion superfoam, offering soft yet responsive cushioning for multidirectional movement and high-intensity workouts. A precision-tuned Speedboard enhances agility and energy return, while the reinforced heel counter and lateral sidewalls provide stability during dynamic transitions. The durable rubber outsole ensures excellent traction on gym floors and outdoor surfaces alike. Finished with tonal On branding and a sculpted, low-profile silhouette, the Cloud X 4 “Black Eclipse” (W) combines durability, comfort, and refined performance for athletes who move seamlessly between sport and lifestyle.