We spent 6.8 hours reading reviews from experts and users. In summary, this is what runners think:

6 reasons to buy

  • This running shoe utilizes textile and foam to provide snug foot wrap.
  • Many reviewers greatly appreciated the inclusion of the reliable GORE-TEX waterproof membrane in the upper.
  • The Boa System is a lacing technology that makes it easy for runners to adjust the fit & closure of the shoe.
  • Runners received the Charged Cushioning system well because it gives a burst of energy with every step.
  • The Michelin® Wild Gripper outsole performs like the tire of a racing vehicle; it’s responsible for traction, grip and responsiveness over the surface.
  • The unique design of the Fat Tire GTX appealed to many testers.

4 reasons not to buy

  • This running shoe is very heavy.
  • Because of the presence of some of the high quality components, the Fat Tire GTX has a very high price.
  • Some runners weren’t too excited when the outsole started squeaking a lot.
  • Others felt it was a bit narrow for their feet.

Bottom line

An award-winning shoe, the Fat Tire GTX from Under Armour brings performance and comfort to the next level. It is a neutral running gear that many runners can appreciate because of its unique components and its effectivity. Though considered by some as heavy and pricey, the Under Armour Fat Tire GTX is still a successful release.


Base model: Under Armour Fat Tire
Terrain: Trail
Arch support: Neutral
Weight: Men: 18oz | Women: 18oz
Heel to toe drop: Men: 10mm | Women: 10mm
Pronation: Neutral Pronation
Arch type: High arch
Use: Jogging
Waterproofing: Waterproof
Features: Slip-on | High-top
Strike Pattern: Heel strike
Distance: Daily running | Long distance | Marathon
Technology: Gore-Tex
Heel height: Men: 33mm | Women: 33mm
Forefoot height: Men: 23mm | Women: 23mm
Brand: Under Armour
Type: Heavy | Big guy
Width: Men: Normal | Women: Normal
Price: $200
Colorways: Black, Grey
Special editions: 1 special editions
Small True to size Large
See more facts


Among the better Trail running shoes

Expert Reviews

Experts are runners, who post reviews at youtube, directly at RunRepeat or at their own websites. Each expert is categorized from level 1 to level 5 based on expertise. See stats on expert reviews and how we calculate scores here.

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82 / 100 based on 6 expert reviews

  • 84 / 100 | The House | | Level 1 expert

    Confidence. On and off the trail.

  • 77 / 100 | Doug Gilmer | Level 1 expert

    All in all the boots held up well and kept my foot dry.

  • 77 / 100 | Running Competitor | | Level 2 expert

    This shoe is heavier than most trail running shoes-it has a lot of girth-but feels less so in sloppy, wet terrain or snow.

  • 94 / 100 | Outside | | Level 1 expert

    Lightweight and bomber, these are the shoe-boots you want when the singletrack gets muddy.

  • 85 / 100 | BeatBowler | Level 1 expert

    A hybrid boot that is durable enough for the harshest weather conditions, comfortable enough for extended, daily wear, and stylish enough to wear outside of the wilderness, the Under Armour Fat Tire GTX shoes are a must-have item this season.

  • 78 / 100 | Backpacker | | Level 1 expert

    The tall sole (23.5mm in the heel) made ankle rolls a real threat on off-camber trails.

Become an expert

  • The Under Armour Fat Tire GTX features a waterproof membrane. It uses the GoreTex membrane that is completely waterproof. It keeps the water from entering the shoe while running on rainy or wet conditions. This waterproof feature does not affect the shoe’s breathability.
  • The shoe also features the Boa closure system that delivers a quick lacing system to the runners. With this technology, laces can be fixed in a simple click and turn.
  • The Fat Tire GTX also features the Cupron Anti-Fungal Pro Fibers that is designed and placed in the shoe to help reduce odor and help prevent the development of foot fungus. These fibers provide a healthier running environment for the foot.
  • The outsole unit of the Fat Tire GTX is something that should be look forward as well. It features the unique design that is inspired by the tires of the off-road bikes. The fat tire lug pattern gives reliable grip on different surfaces and added durability to the sole unit.

The GTX version of the Fat Tire is true to its size. When it comes to giving the right fit, this shoe will not disappoint. It delivers a comfortable fit in the midfoot and heel area. The forefoot is in medium measurement as well. It gives enough space to those medium-footed runners. This shoe is also available in standard widths.

The outsole unit of the Fat Tire is specifically designed to help runners survive the toughest terrain. The sole unit is inspired by the fat tire off-road bikes that deliver reliable traction on varied terrains. The multi-directional lugs are reliable enough to provide the needed grip when running on muddy or soft surfaces. The outsole also gives added durability for shoe endurance.

The midsole of the Fat Tire GTX utilizes the Under Armour Charged cushioning foam that gives reliable underfoot protection. It is specifically designed to absorb shock during landing and for a more solid rebound. This cushioning foam works well with the bottom-loaded foam placed underneath the Charged foam. It gives a soft and lightweight protection.

The upper of the Under Armour Fat Tire GTX features the high performance outdoor fabric that delivers a breathable and durable upper coverage. It also uses the 100% waterproof GoreTex membrane that is designed to resist water, keeping the foot dry all the times without sacrificing breathability. It is also guaranteed to be durable.

The Fat Tire GTX also features the Boa Closure system that features a quick way to tighten the laces. In just a simple click and turn, the laces will be locked quickly. The shoe also features the Cupron Anti-fungal Pro Fibers that reduces odor, giving the foot a healthier environment.


Jens Jakob Andersen

Jens Jakob is a fan of short distances with a 5K PR at 15:58 minutes. Based on 35 million race results, he's among the fastest 0.2% runners. Jens Jakob previously owned a running store, when he was also a competitive runner. His work is regularly featured in The New York Times, Washington Post, BBC and the likes as well as peer-reviewed journals. Finally, he has been a guest on +30 podcasts on running.