What is SkiMo?

Ski mountaineering in the Swiss Alps
Ueli Steck ski mountaineering training

Ueli Steck training on skimo gear in the Jungfrau Region of Switzerland

SkiMo Explained

Uphill skiing? Isn’t that an oxymoron? Who skis up?

According to a recent article at Outside online, skimo is one of North America’s hottest winter sports. Apparently lots of people are pointing their skis uphill.

After ten years living in the Alps, skimo is now a regular part of what I do each winter. It’s completely normal to go for a ski and just go uphill. While it’s been great to hear of its growth in North America, I still see a lot of confusion as to what exactly it is. The other night I was cruising social media and found all kinds of posts from a skimo race in the US. Some of the lead people had the kit and gear. The rest looked like they were out for a normal tour with numbers pinned to their baggy pants. I understand it’s not the gear that makes for skimo, rather it’s the concept of performance uphill skiing. But, until you have the right gear, you are still ski touring. It’s the same as trying out trail running with your hiking boots and 40 liter pack, you’ll get the idea, but not the feel.

With this bit of info I hope to inspire people to explore the world of skimo.

Ski Mountaineering? Or, SkiMo?

Ski Mountaineering? Ski Rando? SkiMo? One source of confusion around the sport is the name. What is this sport really called? For the most part, it is neither mountaineering or touring. It’s even been called Ski Running, but this isn’t entirely true either. The governing body is the ISMF, International Ski Mountaineering Federation. To me, it’s just skimo.

So what is it? It’s basically performance-oriented ski touring with the following objectives: go uphill, use ski touring as exercise, and combine different mountain(eering) skills while on skis. Note that there is nothing here about going downhill. This may be the stumbling block for people. Most people go skiing to, well, go skiing. Skiing implies going down. In my opinion, after twenty years doing this sport, and speaking with many friends about it – the goals of a typical day on skimo gear is to train, skin uphill, climb some peak, quickly do some big tour and/or traverse, or prepare for a race. The downhill part is an afterthought. If it’s good, awesome. If not, oh well.

However, when it comes to skimo racing, then the downhilling becomes critical, just like in mountain running and cycling races. The focus of this article is to define skimo as a separate sport from ski touring or alpine skiing and for this we’re going to discuss the training component, uphill focus, and what makes it its own thing.

When you remove the downhill focus from skiing, it is fundamentally a different sport. It opens up endless potential for what you can do in the winter on skis. Clearly, this sounds like an activity for a specific kind of person… uphill people. But consider this, skimo is basically trail and mountain running in the winter. 

To complicate the terms even more, to say you’re going “ski mountaineering” is something different. The “mountaineering” part is going to hold you to that, you’re probably heading to ski a peak, a big line, or a traverse. But if you’re going skimo skiing, you can be ski mountaineering, or you can just be skinning up a piste. That’s right, while skimo is short for ski mountaineering, it is not always ski mountaineering. Confused?

Ueli Steck training with ski mountaineering in the Swiss Alps

It’s always a powder day!

For uphill skiers, snow quality is hardly a concern. Deciding where to ski tour is often dependent on chasing the best snow, and when it’s not what we hoped for, we’re disappointed. But if you go uphill skiing… Who cares! It’s incredibly liberating. Although it should be said that when the snow really sucks, going down on those light, skinny skis can have you cursing the very existence of snow. Thankfully, with skimo, you spend far more of your time going up than down anyway.  And, if the snow is true powder, I’ve found that skiing it on skimo gear works just fine. Powder is powder, if you can ski it you’ll feel heroic no matter what you’re on.

You can go solo

Unlike ski touring, which is about getting into position to ski down some line, skimo cares more for simply getting out. If it’s the training time you’re after, go where you won’t put yourself in a dangerous situation. For many people in Europe, and a growing number in the US, skinning up the side of a piste, ideally before or after the lifts are running, is the easiest skimo strategy. In the Alps, some pistes are a highway for people skinning in the early morning hours. When we lived in the Dolomites, there were actual skimo training tracks. In the Swiss Alps, we often use dirt roads, sledding routes, and summer trails turned snowshoe tracks for quick and easy training sessions.

But you can also head for moderate mountain terrain with the intention to move through it quickly. Of course understanding where you can go solo is key, so too staying well within your limits and not talking yourself into skiing something alone where you don’t belong.

Ski mountaineering in the Swiss Alps

Solo skimo training in moderate terrain, but amongst big mountains in Switzerland’s Jungfrau Region.

SkiMo makes you a better ski tourer

Skimo makes you fit, fast, and efficient. Thrashing your way downhill on ultralight gear teaches you to be a better skier. If you’re spending a few days a week on your skimo gear, imagine how nice it will be to switch back to the fatter skis. You’ll dial in your systems like never before because you are moving quickly with little, but the best, gear. Plus, you’ll be able to impress your non-skimo friends with 15 second transitions from skins to downhill ready (like Kilian).


Let’s face it, gear is cool. In the trail running world, people love all the techy gear that is evolving to make them faster and lighter, more comfortable, and sport-sexy. Skimo is a great opportunity to spend large sums of money on carbon fiber. While you may not be ready, or willing, to pour yourself into a one-piece lycra suit, I bet you’ll be willing to shell out cash to save 200 grams on carbon boots. Wearing some of the lightest gear made, and moving uphill on skis you don’t feel, is something extraordinary.

One of the issues I’ve heard from American friends is the lack of readily available high end skimo gear. I found Salt Lake City’s SkiMo Co and it looks like they’ve got you covered with not only the top gear, but also service. Owner Jason Borro says, “Skimo racing is still a niche in the US but it is gaining participants, especially from other endurance sports such as cycling, trail running, and Nordic skiing.”

We cover gear at Essential SkiMo Gear.

A woman ski mountaineering, or skimo training, in the Jungfrau Region of Switzerland.

Ultra runner Kimberly Strom skimo training in the Jungfrau Region of Switzerland

SkiMo makes you monstrously strong

It’s often said that there is no better exercise than nordic skiing. Maybe this is true, but skimo is very similar, and has its own benefits. You don’t need groomed tracks, there’s no ticket required, and for most people, you won’t live in fear of going downhill with even skinnier skis on your feet. If you’re a trail runner, this is the perfect compliment to what you already do. After a winter spent on light gear, the transition back to running is easy. No matter how light your ski gear, it is still heavier than running shoes. Once back on trails, you’ll feel like you are flying.

Save 10% on memberships & training plans with coupon code : alpsinsight

Look at some athletes using skimo for other objectives. Ueli Steck used skimo as cross training for his Himalayan alpine objectives. It gave him a break from running and the pounding that comes with doing a lot of vertical. The nature of skimo allows for somewhat controlled tempo training compared to running, so the cardio benefits are huge with long efforts. And then there is Kilian Jornet who has successfully combined being the Ski Mountaineering world champion and the world’s top ultra runner. Now, Kilian is using all these skills and fitness for his bigger mountain projects.

Ueli Steck training by ski mountaineering in the Swiss Alps

Ueli Steck using ski mountaineering as training in the Swiss Alps Jungfrau Region

SkiMo applied to mountain objectives

For me, moving fit and light through the mountains is freedom. As a climber, I apply my running fitness and ski skills to my mountain goals. In the summer, I enjoy running peaks (The Way Up) or running to climbs. In the spring, I can do the same on skis. I can’t think of many things more enjoyable than skinning peaks in the dark, only to time the descent just right for the best conditions.

I grew up in California’s Sierra Nevada and have skied extensively in the southern Sierra. There aren’t many more idyllic places for skimo gear than the Sierra in April or May. Thanks to the great weather and abundant high quality peaks, moving through the Sierra on skis, from sage to summits, is a dream. In the Alps, come spring, many big peaks are perfect for fast ascents. The classic five-day Haute Route has now been condensed to 16.5 hours – of course on skimo gear. In Norway, Kilian put it all together for the Seven Summits of Romsdalen, a 77km route with 9000 meters of gain, in one day! Of course you can create your own objectives with the handy combo of solid fitness and refined skills like we did on what we called the Horny Tour.

SkiMo gets you out

Skiing is better than not skiing. I have the luxury of living in the Alps, and I’m in them nearly each day. In the winter months, if I relied on a partner every day just to get out, I would go running more and skiing less. Skimo allows me to go when I want. I just have to pick and choose where I can go alone. It might be a piste, it might be a long, safe valley, or it might be a peak if conditions are right. Skimo is freedom to ski how you like.

The topic of, “why do you need to do things fast in the mountains?” often comes up. You don’t. But “fast” can be another word for feeling efficient, or even effortless. I think these are feelings many of us want. To flow through the landscape thanks to a skill set we develop is a special feeling of movement. Yes, it is a performance based idea, but maybe one that allows you to more fully experience what it is you’re doing because you have stripped away things that distract, and require your time.

Ultimately, skimo is about going into the mountains  with the expectation to move through them, beautifully.

To learn all about SkiMo gear, check in with the follow up post, here.

By Dan Patitucci

Do you have experience with skimo? Is it going to grow in popularity? Is it of interest? Please share your thoughts in the comments section – thanks!


Comments 10

  1. Hi Alain,
    I’m doing skimo in winter as well and I fully share what you write !
    One silly question, under which sport do you register on Strava Skimo?

    1. Hi Uberto, sorry I did not see your comment when you posted it. I hope you’re having a great winter! I register my skimo activities under ‘backcountry ski’

  2. Fantastic article! I’m from a ultra running and climbing background but came to skiing late (mid 20s). I forget how exactly I first was turned onto ski mountaineering racing, but since about 2005 I’ve been CONSUMED with it. Although I only now have I finally moved to the mountains full time, I was blessed with about 6 years living in Europe where I really saw how ubiquitous piste-touring and “citizen races” were. I’m very excited to see how it grows here in the coming years.

    1. Post

      Hey Mike, Sounds like you are due for a visit back to the Alps with your light gear. Hope you get a trip in soon!

  3. Great post! But there’s one BIG fact fault. Downhill skiing is a huge part of SkiMo and the downhills normally makes the difference of who wins or not. Especially in the men’s races and in individual/team races. Only in the “Vertical” discipline, downhill is not a part of the game 🙂

  4. Hmmmm. A new name for something that we skiers/mountaineers like me have been doing for the last 45 years. I’m not impressed.

    1. Post

      I’m curious if you’d also prefer to return to the gear of 45 years ago? Or, open your mind to what is going on now? I’ve been at it for 35 years and am quite impressed, and joyfully take part. Sounds like you may suffer from grumpy old man syndrome.

      1. Come on, nothing to do with grumpy old man syndrome.
        I’ve been at it for 40 years and of course I don’t want to go back to the gear of the 80’s!
        But surely we did things back then with a similar attitude. Of course we only managed half the distance but hey, the gear counted double:)!
        So I ungrumpily agree with Harry: new name for an old hat…

        1. Post

          Well I admit to being guilty of some grumpy old man syndrome myself. Mostly about music quality these days, and crowding at the crags… I think what modern skimo has done is to vastly open minds to what is possible. The gear is so far beyond what we had in the 80’s that it truly allows for athletes to do amazing things. And these athletes are coming out of the skimo race scene with incredible skills and fitness on light gear. Many of the same athletes are also at an elite level in other summer sports, which also provides for a deeper skillset, which translates to huge achievements (Kilian on Everest?).
          Sure, big stuff was being done with a similar spirit back then. But to not be impressed by what is being done today is to be stuck in the past. It’s like believing rotary phones are still the standard to compare with what is available now. It’s really a different game. And that should be okay. Just like in the 80’s it was a different game from the 40’s. And so it goes.
          And seriously, what’s with the music these days that the kids listen to? 😉

          1. Blah. New gear means that the sport deserves a new name? Ha! That smacks of an undeserved superiority complex. BITD we did big couloirs on 3-pins and leather boots that young folks would dream of skiing unless they were strapped into alpine bindings and plastic boots. Seriously. If I weren’t 1,000 years old then I’d be skiing circles around you in that new gear. But I wouldn’t be giving the sport a new name.

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