On Men's Cloudsurfer Next Altra they have increased the stack

they have increased the stack height and added a new premium foam midsole to deliver that soft

The tights also come with drawcord at waist for optimal fit and back pocket with zipper for safe storage of keys

optimized outsole geometry and protection where they need it most

and additional rubber in high wear areas for added durability

Modeled after On's top race-day shoes

On Men's Cloudsurfer Next Altra they have increased the stackRun smooth. Feel faster. The Cloudsurfer Next adds forward roll to soft CloudTec Phase. So every run feels effortless. The Cloudsurfer Next's updated forefoot rocker pushes power to the front. Built for daily running, it's light, cushioned and responsive. And feels fast too. Combined with Cloudsurfer cushioning for an effortless feeling, put simply, it makes faster running feel easier. Modeled after On's top race day shoes, the updated Cloudsurfer