Weather Jacket

On was founded in 2010 in Zurich by Olivier Bernhard — a former Ironman and duathlon world champion — together with David Allemann and Caspar Coppetti. Bernhard had prototyped the first CloudTec sole by gluing cut sections of garden hose to the bottom of a running shoe; the hollow rubber pods compressed on landing and locked firm for push-off, and the idea scaled. The brand still runs its R&D out of Zurich and has been listed on the NYSE since September 2021.

The Weather Jacket is On's packable wind-and-water-repellent running shell — ultralight Japanese-milled polyamide with a PFC-free DWR, a micro-ventilation pattern for 360-degree breathability, and a silhouette cut for running. The Lumos variant adds highly reflective fabric and details for low-light winter use. Not a fully seam-sealed hardshell — a wind jacket that handles light rain. Weather Jacket — ultralight Japanese-milled recycled polyamide with PFC-free DWR, micro-ventilation pattern for 360-degree breathability. Wind/water-repellent, not seam-sealed.

The Weather Jacket is On's ultralight packable shell — Japanese recycled-polyamide, PFC-free DWR, a piece designed to disappear into a running belt or vest pocket until the forecast turns and then take on cold wind, rain and exposed ridgeline miles.