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The Axis of Awesome.

Everything you do on a snowboard starts with your feet, which is why having the right boot is crucial when you're pointing it down hairy lines and bombing choppy steeps. The K2 Men's Thraxis Snowboard Boot has a stiff, responsive flex for ultimate control and is loaded with performance-enhancing features like Triple Boa and Harshmellow that will change your perception of what a boot can do for you.

Part of the awesomeness that is the Thraxis, K2's top-of-the-line boot, is its Triple Boa system. Two Boa Focus dials allow you to independently adjust the tightness of the upper and lower zones of your boot, and a Boa Conda liner lacing system tightens around the liner to securely lock your foot in place to prevent heel lift and foot fatigue. Endo construction uses a urethane structure will flex zones that increase in stiffness towards the spine of the boot to provide additional support and a lively feel. An Intuition Pro Foam 3D liner molds to the shape of your foot for a comfy, custom fit, which, along with the Triple Boa system and Endo construction, improves response and board feel by making the boot feel like an extension of your foot.

The Vibram ProLite outsole is rugged and tough to ensure traction and durability whether you're crossing icy traverses mid-winter or scrambling up rocks for late season corn shredding. High-rebound Harshmellow cushioning in the heel and forefoot dampens vibrations for a smoother ride and absorbs shock to make landings softer and more controlled. Harshmellow is also featured in the dual-density EVA footbed for even more cushioning without sacrificing response. It all adds up to make a boot that can deliver top-shelf performance in the harshest terrain all season long.

  • Boa Focus dual lacing system
  • Boa Conda liner lacing
  • Vibram ProLite outsole with Harshmellow cushioning
  • Intuition Pro Foam 3D liner with integrated asym power strap
  • 3D-formed dual-density EVA footbed with Harshmellow
  • Moldable internal J-bars
  • Dual-density 3D-formed tongue

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Review Summary
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1 3
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K2 Snowboards Thraxis Boa Snowboard Boot - Men's

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Here's what others have to say...

5 5

This boot is what I was dreamed...

  • Familiarity: I've put it through the wringer

The heel hold boa works amazing, the 3 independent boas works so well, you can always adjust here or there. Very easy in and out, flex is good, maybe a 6?.... If you can afford this boot, pull the trigger now.

4 5

Great features, packs out a good bit

  • Gender: Male
  • Familiarity: I've put it through the wringer

I am a 9.5 in street shoes with narrow feet and ankles so I opted for the 9 in these boots. I went to my local shop and had them heat molded, they felt great for the first few days but they packed out a good amount after 7-ish days. I am able to crank the boas tight enough to get rid of most heel lift but my feet move around more than I'd like. I love the liner boa, and the liner is super warm. Great boot, just make sure you get a tight fit.

5 5


  • Gender: Male
  • Familiarity: I've used it several times

This boot is awesome. I had the K2 T1 DB before this. The major difference was that there was only one boa for both upper and lower lacing and one boa for the liner. The problem was that it was difficult to get comfortable with only one boa tightening both upper and lower laces. If I wanted the top tight, it was too tight in the foot. So I always had to compromise the fit. With two boas handling the lower and upper separately, the fit is great all the time. No more compromise. The Thraxis is also very warm and comfortable. Noticeably stiffer than the T1 DB. Construction is top notch. These are the best boots I have ever owned.

Unanswered Question

Well I got the boots of my dreams, ...

Posted on

Well I got the boots of my dreams, That's just it dreams... I was so over do for a new pair of boots. I have been rocking out, and maintaining top of the shelf DC Allegiance with pop rivets and shoe goo and I had to warranty them once. Got a new pair of the same boots 2 year difference , they did the same thing. so very picky on my new purchase . went with the to self K2's.
so the ??? is the left boot is badly pinching my big toe and the right is fairly tight, size a 11us wanted to return them for a
11 1\2 don't want them to get sloppy. but out of those sizes, so if I get them heat molded do you think that will sole the problem??? or should I return them and try to find something else, or rock the DC???

Are these good for wide feet? I have some...

Posted on

Are these good for wide feet? I have some weird ass feet and foot pain. Size 13. I ride 20 days a year.

Responded on

Yes. The K2 Snowboards Thraxis Boa is known for its high degree of adjustability for fit. The Boa Conda Liner lacing and Intuition Pro Foam 3D moldable liner will allow you to get a very custom fit for a wider foot. I would also suggest looking at Thirty-Two boots in general as they tend to fit wide feet well.