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UTMB is a brutally challenging race, but the race-week hype, world-class competition, and global party vibes have a way of making every runner feel special

It’s an unfortunate tragedy, but, many argue, high-mountain adventure can never be completely free of risk

Wild and crazy running adventures on the Colorado pack-burro racing circuit

Everything you need to know about the famed races in Chamonix, France

Reebok’s Floatride Energy 4 Adventure delivers a road-shoe ride with just enough toughness for dirt

Our editors tested five of the best carbon-plated trail shoes—and two alternative plated shoes—on the market. Here’s what we found.

Heatstroke deaths are common and preventable. Here’s how to make safe decisions when you’re exercising in the summer.

Here’s what the science says about making it to the top as quickly and efficiently as possible

The loss of a big toenail sent Outside columnist Brendan Leonard into an existential crisis—but maybe not for the reason you think

Beware of these warning signs that indicate it’s time to get new kicks. Plus, use these expert tips to extend the life of your trail runners.

This shoe brings carbon-plated speed to the masses

Blisters are history with this snug, no-slip pair

Don’t be afraid to sweat it out in these running pieces

Carryall solutions for every kind of run

Don’t be afraid to sweat it out in these running pieces

He was an environmentalist versed in the dangers of our warming world, an expert trail runner, and eminently capable of moving far and fast outside. The heat killed him all the same.

The Swiss Alps are home to an incredible new hut-to-hut runners’ route called the Via Valais. It’s a little demanding—150 miles, nine stages, and 42,000 feet of elevation gain—but if you can take it on, you’re guaranteed one of the most spectacular adventures of your life.

This retired professional ultrarunner has found (almost) every waterfall along this wild stretch of central California coast. And, no, he won’t tell you where the best ones are.

When you’re covering 145 miles through the Alps, every gram counts

From routes that have been rebuilt after wildfires to newly constructed singletrack, we can’t wait to get trekking on these trails around the country

I am pretty sure no runner who has consistently won races approaches their training in this way

A conversation with Semi-Rad’s Brendan Leonard on the life-affirming joys of type-two fun

Missoula, Montana’s M Trail is many things. But mostly it’s just steep.

The fell runner from the UK came to the sport relatively late, but she seems to be making up for lost time

The Speedland SL:PDX might just change how runners think about their equipment

A training plan and general principles to guide your first foray into longer ultramarathons

Starting at five hours a week, this ten-week program will help you build endurance and jump-start your training this winter

Many of the skills involved with long-distance hiking also lend themselves to going faster on trails

Our trail shoemeliers pick the best off-road running models to pair with each trail surface

Outside tester and mountain guide Andrew Skurka summed up the Lone Peak best in his roundup of backpacking shoes: “[It’s] a favorite of thru-hikers, who appreciate its extra-wide toe box and generously cushioned 25-millimeter stack height when putting in long days on well-maintained trails.”…

Beloved by many Canadians, the trail is especially important to Vancouver-based Judith Kasiama, a refugee from the Democratic Republic of Congo and founder of Colour the Trails

In our long-term test of the best women’s running shorts, our testers picked the Strider Pro as the best low-rise pair. “Aside from the next-to-skin feel, the biggest benefit of the Strider Pro is that it stays out of the way. The generous leg openings and light, stretchy fabric make it feel roomy.”

“Our test team applauded the thicker midsole, which has a segmented rock plate in the heel and air pockets in the forefoot, for soft landings and smooth, snappy takeoffs,” we wrote of the Terra Kiger in our 2022 Winter Buyer’s Guide. “Even with this beefier profile, the Kiger 7…

The AFO-Vent Multi short is one of our favorite pairs for warm-weather runs. “Fashioned from a nylon-spandex blend, these shorts have a stunning five pockets below the waistband,” wrote Buyer’s Guide tester Martin Fritz Huber. “The larger ones at back and side fit gloves, while keys or gels go…

We only have space for seven shoes in our print magazine, but there are a few others you should know about, too

In the second edition of the Max Vert October challenge, Christopher Fisher spent ten hours a day running up and down a mountain

A new study quantifies the effects of running on technical terrain

“Our favorite for uphill skiing or wearing under a large mitten, this glove has fleece on the back of the hand for warmth and a combination of polyester and goatskin in the palm for durabil­ity,” wrote our Buyer’s Guide tester. It’s one of the best deals we’ve…

This kit will get you out the door even on cold days

‘What It Takes’ provides an authentic glimpse of what an ultramarathon is all about, the importance of the support crew, and the strategy needed to win

Our Gear Guy, Joe Jackson, likes the Challenger ATR 5 because its cushioned sole is kind on his body. “Hammering those mentally therapeutic miles and not complaining about aching knees afterward make the ATR 5’s some of my most cherished gear,” he wrote.

We’ve sweat in them, worn them on muddy trails, and through countless miles on pavement. Now they’re discounted.

There are lots of ways to find your running potential. These tips may not be helpful in that process.

At this distance, you have to be confident in your kit

A burgeoning area of training science theorizes that the less stressed a runner is, the more positively he or she may adapt to training stimuli. Plus 5 quick tips to lower your own stress levels.

In order to achieve his first UTMB win, the American ultrarunning star is taking a whole new approach: rest

It is believed to be the first death in the 19-year history of the Ultra-Trail du Mont-Blanc races in and around Chamonix

For elite mountain athlete Hillary Allen, a near deadly fall was the start of a long, winding journey to find a new source of strength and purpose

Injury forces ultra legend Scott Jurek off the trail

Can I cut switchbacks? What about smoking on the trail? And what do I do with all those rocks?

The Flight Futurelight is one of our favorite shells for trail runs in any type of weather. “The Futurelight membrane acts like a nano-sieve: it’s permeable to air but not water, so it’s fully weather­­proof and remarkably breathable,” wrote tester Martin Fritz Huber in our 2020 Summer…

Whether you’re looking to transition from pavement to dirt or just log more and faster miles off-road, Saucony athlete Katie Asmuth has you covered with hard-earned tips and advice

How Mario Mendoza is training to conquer the alps at the UTMB 100-mile trail run this August.

After 315 demanding miles in the Bushido II, tester Andrew Skurka praised it for its “superb traction” and “excellent durability for a 10.5-ounce shoe.” Tip: it does run a little small, so we recommend trying a half-size up.

It has all the comfort and features you’d expect from a high-end performance shell, but at an affordable price

Your hydration needs are as unique as your training schedule. Here are four picks for every kind of run.

Incorporating steep inclines into your training can help improve strength, agility, endurance, and more

Free-flowing, feel-based long runs still have a place in structured training plans.

Outside columnist Jakob Schiller picked the Peak Mission as his favorite pair of winter running gloves. “Patagonia wisely included a thin nylon mitten that folds out of the cuff and covers your fingers. It withstands chilly wind and provides warmth to keep you going when temperatures dip…

Wade Moriss and Stefan Griebel don’t consider themselves fast runners or climbers. But when you combine the two, they are a powerhouse.

Top-notch gear for wrangling singletrack adventures

Researchers are searching for telltale clues in your strength, flexibility, or body position that signal an impending injury. It’s harder than you think.

A merger of two race event giants leaves trail running leaders concerned about rising entry fees, homogenization of racing experiences, and bulldozing of smaller events.

Outside contributor Wes Siler called these the best hiking boots he’s tested. “If you need ankle support and weather protection, then you’ll find more of that in these Altras at less of a weight penalty, and with more comfort, traction, and support, than you will in just…

The Daylite doesn’t come with a bladder, but there’s storage aplenty: 20 liters in the main compartment plus an exterior pocket. The sleeve in the main compartment can house a reservoir you buy separately, or it’ll accommodate a tablet or small laptop if you’re just using it for commuting. If…

Pro runner Max King offers tips, tricks, and helpful perspective.

We featured the Shakedry in our 2019 Summer Buyer’s Guide. “Sparse but effective, the Shakedry Trail is essentially a waterproof membrane without any additional laminating fabric,” wrote tester Fritz Huber. “That’s why it might be the lightest water- and windproof jacket on the market—a size large weighs…

We round up 7 of the top new trail shoes available in 2021, showcasing a wide variety of rides to match your favorite trail terrain and running style.

Take to the woods with functional features and style.

The climate organization isn’t just about winter. Here’s why—and how—to make a difference.

Seven reasons from Brendan Leonard’s new book ‘I Hate Running and You Can Too’

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