The ON Cloudmonster 2 takes cushioning and energy return to the next level. With the largest ever CloudTec® for maximum comfort and a nylon-blend Speedboard® for powerful propulsion, it supercharges your run. Reworked dual-density Helion™ superfoam adds bounce, while a forefoot foam insert absorbs impact for an incredibly responsive, cushioned ride. Polyester Upper, Nylon-Blend Speedboard®, CloudTec® Technology, Dual-Density Helion™ Superfoam, Foam Insert, Lightweight & Flexible, Branded Details. The ON Cloudmonster 2 takes cushioning and energy return to the next level. With the largest ever CloudTec® for maximum comfort and a nylon-blend Speedboard® for powerful propulsion, it supercharges your run. Reworked dual-density Helion™ superfoam adds bounce, while a forefoot foam insert absorbs impact for an incredibly responsive, cushioned ride. Polyester Upper, Nylon-Blend Speedboard®, CloudTec® Technology, Dual-Density Helion™ Superfoam, Foam Insert, Lightweight & Flexible, Branded Details, Shop All Women’s ON Sneakers. Shop the On Running Cloudmonster 2 'White Frost'. Upgrade your sneakers collection today! Closure: lacing. Toe type: round toe. Heel type: flat heel. Shop the On Running Cloudmonster 2 'White Frost' 3WE10110664. Upgrade your Sneakers collection today!