We spent 9.9 hours reading reviews from experts and users. In summary, this is what runners think:

9 reasons to buy

  • Many runners loved the well-constructed upper.
  • Some reviewers mentioned that this running shoe featured incredible cushioning.
  • Some of the runners commented that the Under Armour Threadborne Fortis 3 had a durable outsole.
  • A handful of consumers agreed that the shoe was lightweight, responsive and comfortable.
  • A good number of purchasers noted that the product has excellent quality.
  • A lot of users observed that its color variations were impressive.
  • Several buyers lauded its exceptional performance.
  • Based on some reviews, its design and appearance were best suited not only for running sessions but also for casual occasions.
  • According to those who have tried it, the fit was perfect for them.

4 reasons not to buy

  • One of the users said that the Under Armour Threadborne Fortis 3 was not comfortable to wear.
  • According to a tester, the shoe did not perform well on running and walking activities.
  • A reviewer mention that he felt a little pain in his big toe while wearing the product.
  • According to some of the runners, they ordered 1/2 size larger than the usual measurements because the shoe was apparently too small for them.

Bottom line

The majority of the purchasers commented that the Under Armour Threadborne Fortis 3 was a responsive, lightweight and comfortable shoe. They were content with its perfect fit and durable outsole. They loved wearing the product not only for short and long-distance running and walking activities but also for casual occasions. Although several of them said that it was not true to size, others still recommended the Under Armour Threadborne Fortis 3 because of its visually-appealing appearance, attractive design, excellent cushioning, and fantastic performance.


  • Terrain


    Shoes best for road, track and light gravel. See the best road shoes.


    Shoes best for trail, off road, mountains and other unstable surfaces. See the best trail shoes.

    Good to know

    As long as you stick to the road or path, and if you want just one running shoe, buy a road running shoe.

  • Arch support

    Neutral / cushion / high arch

    Shoes for runners who do not need any additional arch support (Around 50% of runners). Best for people with normal, high or medium high arches. See the best neutral shoes.

    Stability / overpronation / normal arch

    Shoes for runners who need mild to moderate arch support (Around 45% of runners). Best for runners with a low arch. See the best stability shoes.

    Motion control / severe overpronation / flat feet

    Shoes for runners who needs a lot of arch support. Best for runners with flat feet. See the best motion control shoes.

    Good to know

    - Rule of thumb: If in doubt, buy neutral shoes to avoid injuries.
    - More about arch support in this video.
    - Find your arch type by following steps from this video.

  • Use

    Daily running

    Cushioned shoes for your daily easy running. Great comfort. See best shoes for daily running.


    Lightweight shoes good for races, interval training, tempo runs and fartlek. Here are the best competition running shoes.

    Good to know

    If you want just one pair of shoes, buy a shoe for daily running.

  • Price
  • Weight
    Men: 9.5oz
    Women: 7.1oz
  • Heel to toe drop
    Men: 10mm
    Women: 10mm

    The height difference from the heel to the forefoot, also known as heel drop, toe spring, heel to toe spring or simply drop.

    There are many opinions about what a good heel drop is. We do not recommend any in particular. Lean more in this video.

  • Width
    Men: normal
    Women: normal
  • Release date
Show more facts


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.

Are you an expert? Apply to contribute here.

81 / 100 based on 3 expert reviews

  • 83 / 100 | WearTesters

    The Under Armour Threadborne Fortis is only on model number three, but if the evolution of the model continues, Under Armour could have its first lifetime achievement model.

  • 78 / 100 | RIZKNOWS

    We like the UA Threadborne Fortis 3s a lot but they’re better as cross training shoes as opposed to pure-play running shoes

  • 83 / 100 | MapMyRun

    They’ve become one of the most comfortable pairs of shoes I’ve owned, and I love putting them on for runs, workouts and strolls around town. From mountain trails to neighborhood strolls, my Threadborne Fortis 3 shoes are the no-nonsense pair that I look forward to wearing.

  • First look / Unboxing | Shop Zappos

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Updates to Under Armour Threadborne Fortis 3

  • The Under Armour Threadborne Fortis 3 is a road running shoe that is intended for those who have neutral foot motion. It uses the Threadborne embroidered upper. This technology aims to give more support and breathability.
  • Featured on the product is the multi-surface traction outsole pattern. It provides added grip on a broad variety of surfaces.
  • The midsole utilizes the dual-layer Charged Cushioning, which is essential in delivering energy return throughout the road running sessions.

Under Armour Threadborne Fortis 3 size and fit

The Under Armour Threadborne Fortis 3 follows the standard shoe measurements when it comes to sizing. The shoe is best for runners who want to excel in extended and short-distance road running activities. The available widths are B - Medium for the women's version and D - Medium for the men's version.


The multi-surface traction outsole pattern is integrated into the Under Armour Threadborne Fortis 3. This component of the shoe aims to deliver more traction on different types of surfaces. It is also strategically placed for added protection and support.

Anatomically placed Flex grooves are utilized to make the product more flexible. The purpose of the material is to allow the sole unit of the shoe to follow the natural movement of the runner's foot as it goes through the gait cycle.


Supplying excellent energy return and responsive cushioning were offered by the Dual-layer Charged Cushioning midsole. The technology's purpose is to act as a shock absorber to turn landings into smoother and more explosive heel-to-toe transitions. It is essential in ensuring that the runner's foot is well-cushioned throughout the road running activities.

Additional cushioning to the underfoot area is provided by the Molded Charged Cushioning sock liner. Its goal is to promote a more personalized and customized fit and comfort to the runner.


Increased ventilation is delivered by the Threadborne embroidered upper. The creators of this product made this component of the shoe for better flow of air. This technology's primary goal is to keep the runner's foot cool and dry at all times.

For keeping the foot in place, the padded collar and tongue unit are used. They give more cushioning to these particular areas of the shoe.

To promote a more supportive and snug fit, the manufacturers of the Under Armour Threadborne Fortis 3 added an internal ankle bootie.