• 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: 9.9oz
    Women: 8.3oz
  • 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, Wide
    Women: Normal
  • Release date
Show more facts

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  • The Charged Reactor Run has been equipped with Under Armour’s signature intelligent insulation. It adjusts to the runner’s moves. When slowing down, the upper becomes warmer. However, when the runner speeds up, the insulation gives way to the motion, making the inside of the shoe cooler.
  • On the midsole is the Charged Cushioning which makes use of compressed foam to deliver responsiveness, plenty of energy return, and optimal cushioning. On top of that, the midsole also brings the shoe some durability to take on varied winter conditions.
  • The Micro G heel unit aids in keeping this part of the foot more stable. It also does its part in protecting this part of the foot.
  • The outsole of this UA running shoe was designed with both blown and high-abrasion rubber, as well as lugs of varying shapes and sizes. The main purpose of these features is to provide good flexibility, traction, and protection on different surfaces, no matter what the weather condition is.

Under Armour’s Chared Reactor Run is available in standard running shoe lengths. Those interested to get a pair will be able to use their usual size preference. The sizes start from 5US for females and 7US for males. As for width, standard width measurements are available – B- medium and D-medium for women and men, respectively.

The forefoot part of the outsole is made of blown rubber. This type of compound is commonly used as an outsole material because it brings better flexibility and comfort underfoot while providing enough protection. It may be less durable than carbon rubber. However, it delivers plenty of benefits while maintaining its lightness.

On the outsole’s heel is a high-abrasion rubber which is tougher than the rubber on the forefoot. Because the heel part receives most of the impact when landing, it was necessary to make it more durable with this material.

The sole was designed with lugs of dissimilar sizes. The lugs act like teeth, sinking into snow or other types of terrain, helping the runner propel forward. This action also ensures that the runner doesn’t slip when going over slippery surfaces.

On the midsole is the Charged Cushioning technology. This foam was compressed during production to give the runner greater responsiveness and energy return during runs. The foam is sufficiently durable without sacrificing comfort and cushioning. This midsole configuration is as notable as the midsole design of the Brooks Cascadia 13.

To stabilize and give extra protection to the heel, Under Armour introduced the Micro G heel unit. This extra feature ensures that the heel is minimally locked into place during runs, delivering added support and preventing injury.

The upper of the Under Armour Charged Reactor Run has been insulated with the Cold Gear Reactor. This insulation is very interesting because it adapts to the different degrees of movement the runner is making. If the runner speeds up, it makes the temperature inside the shoe cooler. It does the opposite when the runner slows down.

The textile the upper is made out of has been designed with a quilted embroidery effect. There aren’t a lot of overlays on this part of the shoe. To provide a bit of contrast and a bit of added durability, lines of satin stitching were added.

Inside is an embedded sock liner. This layer serves as an extra piece of cushioning that allows runners to experience an upgraded level of comfort. It also provides a bit of support underfoot, as well as an extra boost in the shoe’s energy return.