The Cloudmonster boasts the biggest CloudTec® ever for cushion and comfort. Combined with the Speedboard®, you are guaranteed to have incredible soft landings and energy return feeling like you're running on Clouds. Running is made easier with light, durability and temperature resistance. The bold sole shape and soft sock liner will ensure you are ready to meet your running goal. True to size fit. Brace for forward-rolling momentum with On Running's Cloudmonster, a recreational runner from the Swiss brand that's stacked with innovative technology. The breathable textile upper comes engineered with dynamics in mind, while its characteristic CloudTec and Springboard features work in unison to offer up top tier rebound and energy return.