• 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: 10.4oz
    Women: 9oz
  • 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
    Oct 2016
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Expert Reviews

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  • First look / Unboxing | Shop Zappos

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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.


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. This outsole configuration is also utilized in the Gemini 3 running shoe.


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.


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.