Meet the fast, highly-technical trail running shoe made for any adventure in any weather. With our thinnest, most breathable membrane and strongest grip to date, this is the third-generation Cloudventure Waterproof.

Kirra Balmanno lives for challenges. Few people make the cut as a veterinarian. Even fewer win high-altitude ultramarathons. Yet Kirra can list both achievements on her CV. When it came to uncovering the wild trails of Georgia’s Caucasus, there was only one woman for the job. This is her first-person account of the adventure.

3 countries. 7 races. 100 nationalities. 10,000 runners. It can only be the UTMB®. We preview the world's biggest trail running event and chat to the On athletes gunning for glory.

With so many marathons taking place each year, it can be tricky to know which to choose or when to run. Fall might be the ideal time. The weather is usually a little milder and conditions more favorable for running. However, we can’t promise this is true for every marathon on this list…

The new Cloudventure trail running shoe is here. Swiss-engineered with the new Missiongrip™ outsole, it’s ready to handle anything the mountains can throw at you. We take a close look at its revolutionary off-road tech.

We dispatched Patrick Güller from the Helvetic Collective, a group of Swiss creatives, to capture the wild landscape of the Lofoten islands in Norway on camera. Patrick and his partner Viviane braved the elements to get up close and personal with a place that’s changed little since the Vikings called it home.