Verdict from 7 experts and 58 user reviews

5 reasons to buy

  • It features a rugged textile upper with bonded abrasion panels that is fairly breathable.
  • The superb comfort of the Under Armour Fat Tire is highly appreciated by several runners.
  • The shoe uses a WildGripper sole that gives the shoes an impressive grip on muddy and rocky terrain.
  • Most runners took note of the shallow stretch upper of the Fat Tire that provides a snug fit.
  • The cushioning and responsiveness of this shoe gained positives reviews from several runners.

2 reasons not to buy

  • Several runners found the Fat Tire heavy.
  • The shoe is slightly expensive.

Bottom line

The Under Armour Fat Tire is a robust trail running shoe that offers comfort, impressive cushioning, and a snug fit. Several users admired the overall design of the shoe while others were a bit disappointed with its weight and price. Though slightly expensive, this shoe will not disappoint even on muddy and rocky terrains. 

Tip: see the best trail running shoes.

Good to know

  • The Under Armour Fat Tire features the Michelin WildGripper outsole with aggressive lugs. The outsole design is inspired from the fat tire off-road bike that delivers reliable grip and traction especially on uphill runs.
  • The midsole of the shoe was also improved. It uses the Charged cushioning foam that delivers impact protection and rebound. This works perfectly with the bottom-loaded foam that delivers added comfort and underfoot protection.
  • The Fat Tire also features the Under Armour Strom1 technology. It uses the moisture-wicking fabric that repels water, keeping the foot drier even on slightly wet conditions. This gives the foot the necessary moisture protection without sacrificing the upper’s breathability feature.

The outsole unit of the Fat Tire is uniquely designed. It is inspired by the fat tire off-road bikes. It features the multi-directional lugs that gives reliable traction on varied terrains. It provides impressive cross-slope grip which is very necessary on steep terrain. This outsole compound, which is also present in the UA Fat Tire 3, is also made durable for long-term use.

The midsole of the Fat Tire uses the iconic Charged cushioning system that delivers durable underfoot protection, unmatched energy return and support. The Charged foam is engineered to deliver a softer cushioning for high rebound. The bottom-loaded foam is also strategically placed underneath the Charged foam to give additional underfoot cushioning. This cushioning system is really designed for underfoot protection and to efficiently convert landing forces to forward energy.

The upper of the Under Armour Fat Tire provides a breathable coverage. It uses high performance and durable outdoor textile. Aside from the comfortable feature, the upper built is durable enough to survive the toughest terrain. With the UA Storm1 technology, the foot is kept dry throughout the run. The Strom1 textile has the capacity to repel water without sacrificing quality.

Jens Jakob Andersen
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.