You're terrified of the Chemex your hipster roommate

they're flattering

Forget sucking oxygen at some aid station

Push your limits with the moisture-wicking design keeping you cool

Cloud X 3 - Black Size:UK 8 You're terrified of the ChemexSpeed. Intensity. Focus. They don't come easy. But they're easier when your shoes are as light and responsive as it gets. The On Running Cloud X 3 pushes new limits in terms of weight, agility, and versatility. So you can react, respond, and crush every workout, and every run. Best for: Training Weight: 201g Heel to toe drop: 8mm Features Ride: Neutral Cushioning: Responsive For more info on specific styles, refer to suggestions in our size guide.