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.

Some runners love it. Others… less so. However, amongst all top athletes and coaches in a variety of sports, running uphill, hill sprints, uphill training - whatever you call it - is known to be one of the most efficient and fastest ways to build up speed and strength. So, how can you get the most out of it?

From casual walkers to hardcore hikers, outdoorsy people sometimes need some high-performance support and motivation to stay active and to enjoy new adventures. Which is why we put together this ultimate guide to On gifts for nature lovers.

Trail runners around the world agree that the great outdoors is always number one. But this gifting season, your present can be a close second. Find gifts that can inspire trail runners to keep moving, whatever the weather, with our top picks for off-road adventures.

On trail athlete Germain Grangier loves to test his limits in ultramarathons. Back in early February, our friends at Mr. Porter took a film crew deep into the French Alps to ask him a big question: Why?

This year, take a vacation that goes beyond any you’ve taken before. Fresh from their latest expedition to Chile, perpetual adventurers Mountains Legacy are here to tell you why embracing your inner explorer and getting outside comfort zones is so important for the mind and body.

We sent globetrotting adventurers Jonny and Hannah Verman for a spot of warm-weather training on the sun-soaked island of Fuerteventura. Here’s how they fared on the beaches, mountains, and volcanoes of the Canaries’ much-loved vacation (and training) destination.

A record five-time winner of the renowned Ultra Trail du Mont Blanc (UTMB), Lizzy Hawker’s unrivaled experience has shaped a daredevil race on her favorite alpine trails: The Ultra Tour Monte Rosa.

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.