Brand: Leki
Category: Trekking Poles
Recommended by Joachim Cassel, Mountain Runner. Community & Events Marketing Professional. Celsius Addict. — London, UK
Highlights: lightweight, grippy, durable
The ULTRATRAIL FX.ONE is a premium trail running pole designed for serious athletes seeking stability and performance on rugged terrains. Its lightweight construction and innovative grip technology make it an essential tool for enhancing your trail running experience. 1. Constructed from durable materials, the 16mm pole ensures long-lasting performance for frequent training and racing. 2. Weighing only 6.4 ounces, this pole offers exceptional support without adding unnecessary bulk. 3. Features the Trail Shark grip-strap system, which reduces grip weight by 30% for improved maneuverability. 4. The Shark Frame Strap Mesh provides a snug fit, allowing for efficient power transfer to the pole. 5. An additional grip option on the lower section enhances control and precision during descents. 6. Compact packing size of just 15 inches makes it easy to carry or stow when not in use. 7. Designed for unisex use, accommodating a wide range of users and skill levels. The ULTRATRAIL FX.ONE is ideal for trail running enthusiasts looking to improve their performance in various outdoor conditions. It excels in rugged terrains, whether during training sessions, competitive races, or attempts at personal records. This pole is perfect for both novice and experienced runners who value lightweight support and advanced grip technology, making it suitable for year-round use in diverse environments.
Price: $219.95
- Who it's for
- Trail runners and ultramarathon racers tackling serious mountain climbing, especially on long or multi-day efforts where pole weight and transition speed matter. Notes also flag utility for those rehabbing lower-body injuries or seeking extra stability on technical terrain.
- What people are saying
- Near-universal praise for the weight, the Trail Shark glove/clip system, and fast fold-and-stow transitions; durability gets strong marks, with one host logging 5 years and another the full Cocodona 250 on a single pair. A couple of notes flag these are not the absolute lightest pole available, and one calls them "not the lightest in the world," though most hosts say the opposite — so expect some variation by model variant.
- Worth noting
- One host (5'3") runs a 115cm length, another (5'5") also uses 115cm; one note advises sizing up in length as skill level increases. Sunscreen can make the grip/setup slightly slippery per one host, and the shark glove system has a short learning curve.
Joachim Cassel's review
Best in the game for anything in the mountains. Easy to fold and stash so you can use them when you need and forget about them otherwise.
Recommended by Joachim Cassel, Mountain Runner. Community & Events Marketing Professional. Celsius Addict.
Frequently asked questions
Who is the ULTRATRAIL FX.ONE TRAIL RUNNING POLES for?
Trail runners and ultramarathon racers tackling serious mountain climbing, especially on long or multi-day efforts where pole weight and transition speed matter. Notes also flag utility for those rehabbing lower-body injuries or seeking extra stability on technical terrain.
What do experts say about the ULTRATRAIL FX.ONE TRAIL RUNNING POLES?
Near-universal praise for the weight, the Trail Shark glove/clip system, and fast fold-and-stow transitions; durability gets strong marks, with one host logging 5 years and another the full Cocodona 250 on a single pair. A couple of notes flag these are not the absolute lightest pole available, and one calls them "not the lightest in the world," though most hosts say the opposite — so expect some variation by model variant.
What should you know before buying the ULTRATRAIL FX.ONE TRAIL RUNNING POLES?
One host (5'3") runs a 115cm length, another (5'5") also uses 115cm; one note advises sizing up in length as skill level increases. Sunscreen can make the grip/setup slightly slippery per one host, and the shark glove system has a short learning curve.
What does Joachim Cassel say about the ULTRATRAIL FX.ONE TRAIL RUNNING POLES?
Best in the game for anything in the mountains. Easy to fold and stash so you can use them when you need and forget about them otherwise.
Why does Joachim Cassel recommend Leki?
Joachim Cassel recommends the Leki ULTRATRAIL FX.ONE TRAIL RUNNING POLES for trekking poles. Best in the game for anything in the mountains. Easy to fold and stash so you can use them when you need and forget about them otherwise.
Is the ULTRATRAIL FX.ONE TRAIL RUNNING POLES a good trekking pole?
Yes — Joachim Cassel recommends the ULTRATRAIL FX.ONE TRAIL RUNNING POLES by Leki as their trekking poles pick. Best in the game for anything in the mountains. Easy to fold and stash so you can use them when you need and forget about them otherwise.
More from Joachim Cassel's Ultra Race Kit
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What other hosts are saying
38 experts recommend the Leki ULTRATRAIL FX.ONE TRAIL RUNNING POLES.
Alyssa Clark, Mountain Adventurer with An Ultra Running Problem
These are the best poles in the game, I'll be yaring hard on them on these uphills!
Recommended in Broken Arrow Triple Crown
Cody Poskin, Professional Ultrarunner and Hopeless Romantic
While not their lightest pole, these carbon fiber beasts offer the perfect balance between weight and durability. I used these for every step of the Cocodona 250 and they held up great.
Recommended in Wyoming Range 100
Megan Eckert, Professional Ultra Runner
For every mountain mile
Recommended in Trail Running
I got these to transfer load from my legs to my arms so I could run more while rehabbing a knee injury, but it turns out they also help you run faster up steep climbs! I really like the fact that the hand strap can be easily disconnected from the poles while running. This makes it easy to quickly transition from using poles to stowing them in your belt/vest (or vice versa) as the terrain changes.
Recommended in Trail Running
John Bruno, Ultra trail-runner, ski mountaineer
Make legs go up more fast.
Recommended in High Alpine Running
Robyn Lesh, Pro Trail Running Athlete
Super light, easily collapsed, clip-in gloves are great. Size up on the length if you're planning to use then for a while (more advanced = longer) and the customer service is great!
Recommended in CCC by UTMB
Super light weight. My go to for multi day trail runs. And the pink makes me happy :)
Recommended in Cocodona Gear
If you're looking for poles - big Leki is where it's at! No need to shop around elsewhere. Leki was started in 1948 in Germany and has been innovating in the space ever since. If you are curious about using poles - there is no argument that with practice and efficiency they're a game changer for climbing which can translate to going further and faster from reduced strain on your climbing legs. They have a few models, and after demoing each variety I find the UltraTrail FX.One to be the most optimal balance of all benefits - lightweight, durable, middle price tier, and added efficiency from the Trail Shark system.
Recommended in Long Run
My go to trail running poles! The carbon makes them super lite, easy to collapse, and cute colors!
Recommended in Trail Race Kit
Love these! Lightest poles in the game. Super easy to click in and out and the gloves are very comfy for long run and downhills not using them.
Recommended in Broken Arrow Triple Crown :)
Steven Kornhaus, Content Creator & Running Coach
The Leki Ultratrail FX.One trekking poles are the best out there in my opinion. They are collapsible, extremely lightweight, and the Trail Shark grip system is so nice! I highly recommend them! They can stow nicely on the Salomon ADV Skin 12 vest too! These poles will really help late in the race!
Recommended in No Business 100
Cierra Sullivan, Human powered, Okanogan County Search and Rescue
Super light weight, compact poles. The design using force distribution through the gloves noticeably reduces upper extremity fatigue.
Recommended in Trail running
Shelby Farrell, Athlete. Marketing Professional. Cat Mom.
These were my first-ever poles, bought for the inaugural Cocodona 250. They quickly became an extension of me — I didn’t even want to put them down after the race. Obsessed.
Recommended in Trail Essentials
Jeffrey Hammond, Foot Doc, ultrarunner, cool dad.
(I own two pair) These poles are one of the best investments you can make if your races or adventures involve serious climbing. They help take stress off your back and legs, improve efficiency on long ascents, and give you extra power when the terrain gets steep. As a foot and ankle specialist, I also appreciate the added stability they provide on technical trails. The extra points of contact can help improve balance, reduce fatigue-related missteps, and decrease the risk of rolling an ankle when the trail gets rough. They're incredibly lightweight, pack down easily, and have become a must-have piece of gear for my longer mountain races. Once you learn how to use poles effectively, it's hard to imagine tackling big climbs without them.
Recommended in Trail Gear You Didn't Think You Needed... But You're Wrong
Klaire Rhodes, Professional Trail/Mountain Runner
The best, lightest poles for training and racing. These carried me through 80k through the Pyranees!
Recommended in Adventure Essentials
Ben Corwin, Hutkeeper and mountain adventurer
The FX.one Ultralight fixed-length poles have a great removable strap system and multi-purpose grip, with a simple folding system. Great for long runs where ounces and transition speed matter.
Recommended in Teton Crest in a Day
super light poles to keep you upright and going the distance
Recommended in mountain running kit
Keifer Gilbert, Endurance Enthusiast, Adventurer, Coach, Father, Sober Dude
Seriously if you are doing big mountain races and don't have these in your quiver i don't know what the fuck to tell you. buy some.
Recommended in 10 Products I Actually Use
Mike McCalley, Endurance Athlete | Entrepreneur | Speaker
Incredible poles. Easy to use. A huge fan of the locking gloves. Super light and lifesavers for the tough climbs and the last miles.
Recommended in My Go-To Gear
Lightest poles on the market!
Recommended in Essentials for Ultra Running
Light and easy to fold and put away - the gloves are a game changer for uphill hiking.
Recommended in Race day kit
These poles are super light and easy to transition. I'm 5'5" barefoot and use size 115
Recommended in ✨CCC✨
Super light & quick to deploy. The perfect sidekick for when the climbing gets steep.
Recommended in tim's trailfest selects
I switched to these poles this season and will never go back to anything else. Leki’s innovative glove design makes their poles easy and efficient to use. Combined with the lightweight but strong construction they are ideal for even the toughest trails.
Recommended in 10 Products I Actually Use
My goto pole choice when the running gets steep and high.
Recommended in 10 Products I Actually Use
Hayden Burdge, Personal Trainer, Hiking Guide
I’ve used the same Leki poles for 5 years and they are still going strong! The most durable and lightweight poles in the game.
Recommended in Cocodona 250
If you're going to run in the mountains, you're gonna want poles. The glove/pole sharkgrip attachment is so effective, efficient, and easy. Easy to unclip, fold up, and put in quiver. And re-deploys just as quickly! Also, the poles are so light, I unclip and run with them in hand on the flats most of the time. These poles are amazingly strong and sturdy. Plus the power transfer from arm to pole by way of the solid clip to the glove is unmatched! You'll love them!
Recommended in 15 Products I Actually Use
These poles come in clutch when the adventure calls for steep climbs and decents.
Recommended in Long Run Adventure Kit
My favorite poles
Recommended in My 200+ Mile List
The best poles to help me fly up the climbs at lightning speed ⚡️
Recommended in Accessories
These are responsible for a lot of my Strava segment PRs. They are super easy to set up and breakdown (setup can be a little tricky if you're covered in sunscreen like I am, but not hard). They are also *incredibly* light. Unbelievably light. Will be using them for a mountainous 50k coming up!
Recommended in Dirt Run Essentials
Rachel Bambrick, Ultrarunning coach & community leader
The only poles I've ever used! Light as a feather, collapsible, and I love the shark glove system.
Recommended in My Tried and True Favorites
Meg Cooke, Mountain Athlete, Materials Scientist
Best running pole on the market IMO, never broken one and they've seen some serious front range talus. At 5'3" I run a 115 (10 cm shorter than my skimo pole).
Recommended in Trail Running
I love the hand harness system with these poles.
Recommended in Trail Running
Julyssa Martinez, Distance Runner | Nutrition Student
Extra pair of legs to outsource the impact on your feet
Recommended in Trail Running Essentials
I am a pole gal, I just love using them in races. Super lightweight but sturdy! I've used the same pair for training, 2 100 mile mountain races, a few 50's, and have never feared they'd break.
Recommended in High Lonesome 100 Gear
The only trekking poles you will ever need.
Recommended in 10 Products I Actually Use
