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Altra King MT Trail Running Shoe - Men's
Sale $83.97$139.95 40% Off

Item # ATR002F

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Item # ATR002F


A Must-Add to Your Quiver.

If you're the kind of runner who gets excited at the thought of thin air, quicksand-inspired talus fields, and super burly climbs, then the Altra Men's King MT Trail Running Shoe might just be the shoe for you. Built specifically for mountain running, the King MT features a Vibram MegaGrip outsole, complete with 6mm lugs that are ready to rip, grip, break, and provide medial support in all sorts of conditions (though, especially the untrekked kind). An Altra Ego midsole attenuates shock and provides an enhanced, energetic feel underfoot to prevent foot fatigue and promote swift transitions that keep you cruising, rather than falling flat. Meanwhile, a StoneGuard insert defends your foot from otherwise debilitating trail-side obstacles, without infringing your mobility. And in keeping with Altra's mission statement, the King MT features a Zero Drop construction, encouraging a natural stride, and the FootShape toe box allows your toes to splay and move with ease.

  • A responsive and burly shoe fit for mountain running
  • Breathable mesh upper is backed by TPU overlays for structure
  • Foot Lock Strap assures a secure fit and doubles as lace keeper
  • Midsole offers uncompromising energy return and shock absorption
  • Rock plate defends foot from trail-side roots or rocks
  • Rugged Vibram outsole maintains traction in all environments

Tech Specs

Upper Material:
lace, hook-and-loop
4mm Contour
Altra Ego, Stoneguard
Vibram MegaGrip
Support Type:
Heel / Forefoot Height:
Claimed Weight:
Recommended Use:
trail running
Manufacturer Warranty:
30 days

Size Chart


US MenUS WomenEuroUKCM
  5 35 2.5 21.5
  5.5 35.5 3 22
  6 36 3.5 23
  6.5 36.5 4 23
  7 37 4.5 23.5
6 7.5 38 5 24
6.5 8 38.5 5.5 24.5
7 8.5 39 6 25
7.5 9 40 6.5 25.5
8 9.5 40.5 7 26
8.5 10 41 7.5 26.5
9 10.5 42 8 27
9.5 11 42.5 8.5 27.5
10   43 9 28
10.5   44 9.5 28.5
11   44.5 10 29
11.5   45 10.5 29.5
12   46 11 30
12.5   46.5 11.5 30.5
13   47 12 31

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Light and grippy

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: True to size
  • Size Bought: 11

I have only taken these out twice, but they have performed great for me so far. I like the inclusion of the velcro strap, which seems to increase stability a lot, and I love the vibram soles as compared to more typical running shoes.

They are so close, but...

  • Familiarity: I've put it through the wringer
  • Fit: True to size
  • Size Bought: 11

These are close but lack refinements necessary for the mountains. Good for trails but when I gave them a true mountain test (Square Top Mountain, 13,800') there were some things lacking. I got these for this specific purpose as the Superior 3 did not hold up to steep ascents/descents.

The picture shows some of the terrain they were exposed to.


* Zero drop

* Great ground feel

* Felt great on climbs. Heel held well during ascents.

* Lower profile than the Superior in upper

* Great sole


* Heel gets sloppy on descents. Needs a heel cup. The velcro helps, but there's a sense when descending the heel isn't holding well.

* If one is going to play in the mountains there must be better lateral support. My foot was sliding laterally in the shoe to the point I had some foot hanging over the side.

* Medial and Lateral forefoot protection. The mountains have rocks and when there's no protection they jab into the foot.

* After two uses the top of upper at laces it almost touching. I had to crank them down pretty hard on the descents.

They are so close, but...

Altra, if you're reading...
Re- heel cup:
The Altra King and Superior are the only running shoes i can wear anymore, and this is because of the open, non-cupped heel and the wide forefoot. My early years of skiing resulted in Bunions in both locations- So Altra, please continue to make a shoe that I can run mountains with and prep for ski season! I have no alternative so lets not change the heel design!

Soles for the vertical runner

  • Familiarity: I've put it through the wringer
  • Fit: True to size

I was anxiously waiting for these shoes to drop, and I am NOT disappointed! I went for half a size up since I do a ton of vertical running and need the extra toe space especially for my descents. At first I was skeptical because these shoes really do feel like slippers compared to lots of other shoes. With a zero drop, roomy toe box, and breathable meshy upper, I thought there's no way that these puppies would hold up, so naturally I took them for a run up Mount Olympus here in Utah. This mountain consists of roughly a 4,000 climb through steep and rocky terrain with a snow choked gully toward the top in the springtime. Normally I would have worn or at least brought cleats with me for the snowfield, but I did it without and honestly did not notice a different. The aggressively sharp-toothed tread pattern bites into snow so incredibly well that there's no need for adding the extra weight of spikes to your feet or your pack. Add that tread pattern with the Vibram sole, and you've got one of the grippiest soles on the market in steep loose rocks and dirt, and it holds on slippery rocks in river crossings... let's not forget how quickly these shoes dry out either! Also.. carbon fiber stone guard? This is kinda my dream shoe...

For questions, call me at (801)619-7481 or email at

Near Perfect Trail Shoe

  • Familiarity: I've used it several times
  • Fit: True to size
  • Size Bought: 11

This shoe has everything I was looking for in a trail running/ light hiking shoe.
Highlight List:
-Dries quick
- Vibram outsole, super grippy
-0mm drop, love the minimal feel
-Toe guard, for the occasional uncoordinated moment
-Mid foot rock guard, so you can feel like you're barefoot without the abuse on rockier terrain

Only complaints:
-probably the ugliest pair of shoes I've ever owned, still gave 5 stars because once they're covered in mud who cares...
-able to lock down midfoot but heel still feels a little loose when tied and strapped

Update!!! Canyon action in the King MT!

Exploring Buckskin Gulch in the southern Utah desert with my King MT. The canyon presented everything from thick mud, numerous rock crossings, knee deep pools, and the King held their own nicely. The upper dries extremely fast and the foot lock strap really locked my foot in place for the technical sections of the route. I'm also loving how grippy the Vibram outsole is. It feels much better than the Lone Peak I've used in the past. My friend (who wasn't wearing the King) was slipping around everywhere while I was sure-footed through the entire canyon.

Hit me up with Altra questions -

Update!!! Canyon action in the King MT!

First mountain runs in the King MT

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: True to size

Email me directly with all your Altra questions -

Testing the grip of the new King MT with Vibram outsole

First mountain runs in the King MT