Building upon an existing style, the Cloudstratus trainers from On Running are packed with new and modern updates. With an improved lightweight feel and double the cushioning, these streamlined sneakers will keep you performing at your best. Durable engineered mesh upper with seamless synthetic overlays. Breathable textile lining for comfort. Removable, foam padded insole for cushioning and support. Modern lacing system for secure fit. Lightweight and flexible CloudTec sole unit made from two layers of Helion-enriched foam.