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. Meet the Cloudmonster 2 from On Running: more cushioning, more propulsion and more energy return than ever before. Featuring their biggest CloudTec cushioning ever, it combines dual-density Helion superfoam with their signature updated nylon-blend Speedboard for softer landings and better impact absorption. Increased energy return, forward momentum, and powerful take-offs make for an irresistible road run. Best for: Road running Weight: 230g Heel-to-toe-drop: 6mm Features Ride: Neutral Cushioning: Plush Sustainability 24% Total recycled content.