On Running Cloudswift 4 AD combines CloudTec cushioning with a breathable mesh upper for a responsive, versatile trainer built for road runs, gym sessions and everyday wear. Key attributes: Black | Mesh | Breathable upper for airflow | Lightweight construction to reduce fatigue | Responsive Helion midsole cushioning | Durable rubber outsole with textured tread for reliable grip | Reflective laces for low‑light visibility | Padded tongue and heel collar for comfort | Reinforced synthetic overlays for structural support | Supportive heel counter to limit heel movement | Segmented outsole for natural flex and efficient gait | Wavy, segmented CloudTec outsole | Embossed CLOUDSWIFT branding on tongue and heel | Subtle lateral On logo | Red Swiss flag accent on heel collar | Minimalist, all‑black aesthetic | Dimensions & fit: Responsive, adaptable fit that follows natural foot movement. | Snug heel counter for reduced heel slip and added stability.