Facts

Terrain

Road

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

Trail

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 high or medium high arches. See the best neutral shoes.

Stability / overpronation / normal arch

Shoes for runners who need arch support (Around 45% of runners). Best for runners with a normal 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.

Daily running

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

Competition

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
$100
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.

Show more facts

Road

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

Trail

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.

Neutral / cushion / high arch

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

Stability / overpronation / normal arch

Shoes for runners who needs arch support (Around 45% of runners). Best for runners with a normal arch. See the best stability shoes.

Motion control / severe overproanation / 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.

Daily running

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

Competition

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.

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.

Summary

We spent 6.3 hours reading reviews from experts and users. In summary, this is what runners think:

5 reasons to buy

  • Some runners commented that the shoe was stylish and lightweight.
  • A good number of buyers mentioned that the upper area was breathable.
  • Many testers agreed that the shoe worked well for running and walking.
  • According to some users, the shoe fitted well.
  • Many buyers were happy because of the Under Armour SpeedForm Fortis 2.1's reasonable price.

2 reasons not to buy

  • A few consumers felt a little pain in their ankle because of the upper's lack of cushioning.
  • A small number of runners had blisters in the heel area due to the rubbing issues that come in contact with their skin.

Bottom line

According to a number of testers, the Under Armour SpeedForm Fortis 2.1 was a good choice to meet the runner’s specific training needs. Neutral road runners appreciated the breathable, lightweight and responsive performance that was given to them. With the good amount of underfoot cushioning, it properly handled the high demands of different running activities.


Rankings


Ratings

4.3 / 5 based on 28 ratings

5 star
57%
4 star
25%
3 star
7%
2 star
7%
1 star
4%

My Rating

Expert Reviews

Experts are running shoe geeks, 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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These are visual presentations, not reviews


Updates to Under Armour SpeedForm Fortis 2.1

  • The Under Armour SpeedForm Fortis 2.1 features a Charged Foam that offers impact protection. The midsole supplies enough cushioning and lightweight response for a better running performance. Shock absorption and rebound properties are heightened with the help of the Micro G Cushioning unit.
  • The outsole features a Carbon Rubber that provides enough traction in a wide range of surfaces. Anatomical Flex Grooves are used to enhance flexibility. These are strategically designed in order to promote a better forefoot flexion.
  • The upper of the Under Armour Speedform Fortis 2.1 offers new innovations, as well. It features the UA SpeedForm Technology which molds to the runner's foot for a more precise fit. It has an Adjustable Heel Strap and a heel cup, which help in improving the overall fit of the shoe. These features hold the runner's foot in place in every running activity. The moisture-wicking property of the 4D Foam sock liner is also one of the important features of the upper area.

Under Armour SpeedForm Fortis 2.1 size and fit

The Under Armour SpeedForm Fortis 2.1 is true to its length and width. It has a standard running shoe length when it comes to sizing. D – Medium is the available width for the men's version and B – Medium for the women's version.

Outsole

The outsole of the Under Armour SpeedForm Fortis 2.1 is made up of Blown Rubber, which provides responsiveness, durability, and flexibility. Impact zones are covered without sacrificing its lightweight structure.

It has a Carbon Rubber in the forefoot and heel area, and its purpose is to provide durable traction. This is important in generating motion between the tangential surface and the runner's body.

The shoe utilizes Anatomical Flex Grooves to promote flexibility. This is significant in allowing an optimal heel-to-toe transition. Because of this technology, runners will experience a smoother ride.

Midsole

The Under Armour SpeedForm Fortis 2.1 utilizes a Two-piece Charged Cushioning Midsole. It is a combination of a soft and plush material on top of a denser and a harder layer of foam. This technology ensures an optimal blend of comfort and support.

A Micro G Cushioning unit is used for better shock absorption. The heel strike aims to transition to the forward motion in a smoother way, thus enabling faster and enabled steps.

A Recessed Ortholite Sockliner is used for added comfort and underfoot cushioning. This technology is embedded in the midsole area to allow air to circulate in the shoe. This keeps the runner's foot cool and dry. It has an antimicrobial finish, which helps in preventing odor.

The 4D Foam Sockliner is designed to follow the contours of the underfoot. This design gives a bit of cushioning to the arch. It is also able to wick away moisture, thus maintaining a dry platform.

Upper

The upper uses a Molded Seamless Heel Cup that provides lightweight structure and support. As the shoe is worn, the rear of the runner's foot is held in place. It is a layer that provides a more secure lockdown.

An Adjustable Heel Strap is utilized on the medial and lateral areas. This plays an important role in locking the runner's foot into the shoe for a better and more improved fitting.

The UA SpeedForm Technology is a feature of the upper that offers a smoother foot wrap. This material eliminates any distraction and molds itself to the runner's foot for a more comfortable and precise fit.

The Under Armour SpeedForm Fortis 2.1 has Ultra Sonic Welded Seams with a Bemis Tape. These materials hold the foot properly to reduce any irritation that the runner might experience.