The On Running Cloud X 4 in Ice Blue features a lightweight, breathable engineered mesh upper with gradient tonal detailing from mint to light gray-blue. Its signature Speedboard™ carbon-fiber plate delivers responsive propulsion, while the dual-density CloudTec® cushioning system ensures soft landings and energetic takeoffs. The midsole incorporates hexagonal cutouts for weight reduction and flexibility, and the heel pull tab with Swiss cross logo reinforces brand identity. A refined lace-lock system and padded collar enhance lockdown and comfort during high-intensity training or daily wear. Ideal for tempo runs, gym sessions, and urban commuting, this model balances performance engineering with minimalist Scandinavian aesthetics. The seamless construction minimizes irritation, and the durable rubber outsole offers reliable grip on mixed surfaces. Designed for versatility, it transitions effortlessly from track to street without compromising support or breathability.