On Cloudmonster running shoes Mens Size 9.5 Iron/Hay Wear In Heel Area Key Technical Specifications Midsole Foam: Helion™ superfoam, providing impact absorption without getting stiff in cold weather. Cushioning Tech: Big CloudTec® pods that collapse horizontally and vertically to soften landings. Speedboard: An integrated nylon-blend plate positioned above the clouds to spring you forward. Geometry: A dramatic, aggressive forefoot rocker that promotes smooth heel-to-toe transitions. Heel-to-Toe Drop: 6 mm (Stack height: 34 mm heel / 28 mm forefoot). Weight: Approximately 9.7 oz (275g) for a men's standard size. Wear In Heel Area (pictured)