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Lean, mean, green machine.

The One U-TF Alpine Touring Boot gives you PU (polyurethane) performance in streamlined form for progressive flex at a light weight. And a thermo-formable liner, rockered rubber sole, and walk mode keep you going, far and wide, or lap after lap.

  • PU (polyurethane) shell for durability and a resilient flex
  • Weight for a pair: 7lb 4oz
  • Lightweight thermo-formable (TF) liner for superior fit, warmth, energy transfer, and performance
  • PU cuff and driving spoiler adds stiffness to the shell, holds heel in place, and features an adjustable lean angle
  • Magnesium Ultra-Lock System for quick, easy release connected to walk mode
  • 15-18 degrees of forward lean, and 60-degree cuff rotation in walk mode, to accommodate whatever the movement
  • Compatible with Dynafit Quick Step-In or standard touring binding
  • Dynafit Pro, a durable, sticky rubber sole for sure, secure footing

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Dynafit One U-TF Alpine Touring Boot - Men's

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Here's what others have to say...

What is the flex on this boot?

Responded on

Dynafit does not provide a flex rating, however they are calling it "medium" flex. One of our reps said it feels like about a 100-110 flex.

I wear size 8.5 US and fit into the 26's pretty well. Since it doesn't look like any 26's are on sale I was wondering if the 25.5 would work?

Responded on

The 26 and 26.5 would be the same shell size! Looks like we do have a 26.5 in stock so that would be the right size for you!
If you had too much room in a 26, you could size down to the 25.5 - however, that would be a full size different since shell sizes are only manufactured for every whole size.
Hit me up if you have any other questions!

Will these boots work with my Marker Barron bindings?

Responded on

Yes, these will work great with the Marker Barron bindings.

Have a great season and be safe with proper knowledge and protection.

Send It!!!


I would like to purchase these boots while they are on sale and wear a size 13 US shoe and mountaineering boot. I have a wider foot and like that these are 103mm last width.

Would it even be worth ordering and trying on a size 30? Does Dynafit make size 13 US AT boots or do I need to look at Scarpa?

will these boots work with "Tyrolia Adrenalin...

will these boots work with "Tyrolia Adrenalin 13 Alpine Touring Binding"

Are these boots compatable with g3 onyx...

Are these boots compatable with g3 onyx bindings?

What is the last width?

What is the last width?

Unanswered Question

I have never skied in the back country,...

I have never skied in the back country, but I am gearing up for it. I have a pair of Atomic TM:EXs that I will be using, are these boots enough to handle these skis?

3 5

decent, but not for the cold days.

I`ve been touring these with my 187 manaslus for a little over a season now.
my impressions:
-light enough for really long hikes.
-also sufficiently compfy.
-stiff enough to move any ski slimmer then 100mm under foot.
-the straps are really poorly manufactured. i had both of them replaced with stronger ones, after one of them just ripped off. you actualy have to pull on them pretty hard to fixate your feet.
- the isolation ist terrible. after 2 hours in -8 celsius, not only my toes, but half my feet are frozen.
looking back, the boots are ok but not the best i could have bought.

Unanswered Question

What is that last of this boot

What is that last of this boot

Unanswered Question

I have TLT 5 Mountains which fit great and...

I have TLT 5 Mountains which fit great and ski well. However I feel I might want a beefier boot for skiing stuff thats not pure smooth powder. I have a very skinny long foot. Even though the 5's are already pretty low volume I put the thickest (original) intuition wrap liner in them and still have an insole to take up the rest. Will the One be too much volume for me to fill? I wear size 30 in the 5's.

Is 29.0 going to be correct for the One...

Is 29.0 going to be correct for the One U-TF for a 10.5-11 shoe size? The only thing I can really compare it to is my Scarpa T2 Eco's with Intuition liners which are 29.5.

Responded on

If you are closer to 10.5 then you are looking at the 28.5, 29 for the 11. Remember that if you are on the large side of 10.5 then I'd probably stick with the 28.5 as the 29 is the next shell size up and you may be swimming in it a bit. That being said you can fill up a fair amount of volume with liners.

will this boot fit fritschi diamir...

will this boot fit fritschi diamir binding?

Responded on

Yes that will indeed work, just be sure you have the right size Fritschi for your boot sole length.

I need a wide AT boot. I have bunions that...

I need a wide AT boot. I have bunions that make my forefoot extremely wide. I have the One PX-TF but even with mods isn't wide enough for me. Is the only difference between this and the One PX-TF the shell material and does that mean that I would I have more luck punching/stretching the One U-TF? What are the widest Dynafit-compatible boot alternatives?

Responded on

You can definitely punch polyurethane more than your PX-TF, but if you've tried and not gotten where you need to be with the PX-TF I'm not sure that is the route I'd go (we're talking minimal differences at the hand of a great bootfitter). If you'd consider a Black Diamond Boot, they will give you much more width and the Quadrant with an Intuition liner (the stock liner sucks) gets you decent tourability and very nice skiability. As much as I love the features of Dynafit boots (I'm considering trying out the Vulcan next season and have an appointment next week with my local bootfitter to discuss), I use the Quadrant now because it fits me out of the box.

I am trying out a pair of the Dynafit...

I am trying out a pair of the Dynafit Zzero4 U-TF. I was wondering how the flex and the last of the One-Utf compares.
Sandy, thanks for the response. Is there any option here in utah to demo the One-Utf?

Responded on

Tom, The last on the One is a bit wider(@2mm), with more volume. The flex is pretty similar (@100-110). The One's tour ability is a whole 'nother world. Enjoy!