• Discontinued
  • 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: 8.9oz
    Women: 7.5oz
  • Heel to toe drop
    Men: 8mm
    Women: 8mm

    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
    Aug 2016
Show more facts


We spent 9.6 hours reading reviews from experts and users. In summary, this is what runners think:

7 reasons to buy

  • The SpeedForm Fortis 2 is very light, according to most reviewers.
  • The price is reasonable, based on several comments.
  • 5 different color options.
  • Some runners have used it for gym sessions.
  • The shoe looks good enough for everyday wear, as noted by a few.
  • A handful loved the shoe’s flexibility.
  • Some runners were very comfortable in the 2nd version of the Fortis.

5 reasons not to buy

  • A significant number of runners suffered blisters in their ankles.
  • The traction is not that good on wet surfaces.
  • More than a few runners who have had the chance to use the original Fortis felt that the updated model lacks the support that was sufficiently by its predecessor.
  • The material is so much stiffer in this version compared to the previous model, according to a large number of fans of the original Fortis.

Bottom line

The SpeedForm Fortis 2 is a neutral runner that is quite versatile. It is suited best for mid-distance or tempo runs and can double as a casual wear. The shoe has a decent arch support and exceptional flexibility in a lightweight package. Under Armour mixes performance and style rather well in this shoe.


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.

  • First look / Unboxing | Shop Zappos

  • First look / Unboxing | Peltz Shoes

Apply to become an expert

Updates to Under Armour Speedform Fortis 2

  • Under Armour serves only minor modifications in the 2nd coming of the SpeedForm Fortis. The most obvious change is a knit-like mesh that is softer and more flexible. It gives the shoe an upper that frames the runner’s foot quite well.
  • Another clear change is the heel counter. While this was located outside in the original version, Under Armour places the heel counter inside this time around. It gives the shoe a more streamlined look while maintaining the same heel support and security.
  • Lastly, the footprint is a bit wider in this shoe for enhanced stability. The shoe offers more room all over with this enhancement.

Under Armour Speedform Fortis 2 size and fit

The fit of the Under Armour SpeedForm Fortis 2 mainly resembles the original version, except that this has a more sock-like fit due to the adaptive mesh upper. There should be no complaint for those with slightly wider feet as the comfortable and roomy toe box remains there for the taking. The heel and the midfoot have sufficient locked down support. The shoe runs true to size.


The outsole uses numerous square patterns that are separated by moderately deep flex grooves. This design gives the 2nd iteration of the SpeedForm Fortis excellent flexibility. A sturdy carbon rubber is located in areas prone to wear while blown rubber is utilized mostly around the forefoot and midfoot for better traction.


A full-length midsole design using two of Under Armour’s best cushioning technologies lies in the heart of the SpeedForm Fortis 2. Under Armour places the Charged Cushioning right on top of the Micro G foam for a superb mix of responsive cushioning and support. The full-length design also helps the runner move efficiently and quickly through the gait cycle.


The knit-like upper gives a very precise fit in comfort and support. It is also quite breathable for a cool and dry run. The seamless upper reduces the possibilities of hot spots and irritation. Under Armour still uses a thin tongue and collar in the SpeedForm Fortis 2. A seamless heel counter keeps the foot in place. Enhanced cushioning and support are provided by a fixed, molded sockliner with moisture-wicking features.