From HIIT workouts to running, gym sessions to traveling, you can do just about anything in the On Cloud X 3. This light and responsive shoe will have you ready to bring the speed. On's signature Cloud Tec® sole gives you cushion, while the Speedboard® energizes every step. The wider platform and large Cloud elements of the shoe make sure that you have support and security whether you are doing track workouts or box jumps. Our testers particularly liked this shoe for gym work in our On Cloud X 3 review. A re-engineered three-layer mesh upper offers optimal breathability, support and durability. It has a better fit around the heel, more lateral support and new star lacing to give you the perfect fit. Plus, the upper is made of 90-95% recycled polyester, so you can feel good about wearing this shoe. The On Cloud X 3 is Swiss engineered to give you soft landings and explosive take-offs for any workout you choose.