The On Running Cloudtilt “Ultramarine Eclipse” is a lightweight, everyday urban sneaker designed for comfort and all‑day movement. It features On’s CloudTec Phase® cushioning and Helion™ superfoam for smooth, responsive cushioning with effortless transitions from heel to toe. The engineered mesh upper is breathable and made with recycled materials, often colored using a water‑saving dope‑dye process, and the sock‑like construction with speed lacing makes it easy to slip on and go. The Ultramarine Eclipse colorway combines deep blue (ultramarine) tones with darker eclipse accents for a bold yet refined look suited to both casual wear and active city use.