Facts

Discontinued
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
$130
Weight
Men: 10.4oz
Women: 9oz
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:

9 reasons to buy

  • Most of the reviewers took notice of the great comfort delivered by the SpeedForm Gemini 2.1.
  • It offers good flexibility despite the well-cushioned ride, according to some runners.
  • There is a good balance between cushioned comfort and feel for the road in this shoe, based on a couple of reviews.
  • It is very breathable, as noted by a handful of runners.
  • There are 5 color combinations.
  • The cushioning is noticeable without being too soft, as remarked by several runners.
  • A good number of users loved the good looks of the 2.1 version of the SpeedForm Gemini.
  • It is quite light for a lot of shoe, according to a more than a few runners.
  • A few runners were impressed by the upper’s ability to dry quickly.

5 reasons not to buy

  • The price is a bit stiff for more than a few.
  • It needs some break-in time, based on the observations of a few runners.
  • A handful of runners experienced blisters in their Achilles heels.
  • It is rather small.
  • The 2.1 version of the SpeedForm Gemini required a break-in period, based on a few comments

Bottom line

The Under Armour designed the SpeedForm Gemini 2.1 for marathons and daily trainings. It has adequate cushioning for miles on the road and for repetitive poundings of day to day running. There is excellent arch support in this shoe and is superbly comfortable. It is great choice for those looking for a durable, flexible, and a light training partner or marathon shoe.


Rankings


Ratings

4.4 / 5 based on 79 ratings

5 star
73%
4 star
11%
3 star
4%
2 star
9%
1 star
3%

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.

Are you an expert? Apply to contribute here.

0 / 100 based on 0 expert reviews

Show moreless reviews
Apply to become an expert

These are visual presentations, not reviews


Updates to Under Armour SpeedForm Gemini 2.1

  • Under Armour introduces minimal changes in the 2.1 model of the SpeedForm Gemini. The latest version uses a new mesh that is quite bigger and with numerous holes. With this update, the upper promises to be more durable and with better breathability.
  • The upper is not as stiff as before and should create a more form-friendly fit. It gives runners an adaptive fit that conforms to the foot with every stride.

Under Armour SpeedForm Gemini 2.1 size and fit

The fit of the 2.1 SpeedForm Gemini is very similar to the earlier version. The main difference is the latest model’s more sock-like fit due to the softer upper. It has standard shoe size and with adequate space in the toe box. The substantial heel counter locks down the rear portion of the shoe while midfoot hold is sufficient.


Outsole

The outsole of the SpeedForm Gemini 2.1 is very well articulated from the heel to the forefoot. There are rather deep flex grooves with clear separation between the rubber pods. This design helps with the shoe’s excellent flexibility. The outsole also uses mostly blown rubber for enhanced traction with carbon rubber in the heel for improved durability.


Midsole

Under Armour has a very simple approach in the midsole of the SpeedForm Gemini 2.1. Running the length of this shoe is a somewhat thick Under Armour-exclusive Charged Cushioning foam. It gives the shoe adequate durability and responsiveness. For more support and stability, TPU inserts called ArchForm are located in the heel and arch areas of this shoe.


Upper

The new upper begins with a more breathable mesh that is also more adaptive. It offers better wraparound comfort and fit. The shoe has excellent heel security courtesy of a very prominent external heel counter. There is added cushioning and support as a molded and fixed sockliner is located in the shoe’s interior. Both the tongue and the ankle collar are quite thin, but lined with soft and plush fabric.