• 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: 8.6oz
    Women: 7oz
  • Heel to toe drop
    Men: 0mm
    Women: 0mm

    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.

  • Heel height
    Men: 23mm
    Women: 23mm
  • Forefoot height
    Men: 23mm
    Women: 23mm
  • Width
    Men: Normal
    Women: Normal
  • Release date
  • Special editions
Show more facts


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.

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87 / 100 based on 14 expert reviews

  • 98 / 100 | Mark Clements

    Altra Impulse – A review from a Masters (40+) perspective

    I am a neutral runner with a mid-foot strike, about 165 pounds and 6’ 1” tall. I race all distances, from 5ks to marathons, but spend at least half of my year training for an upcoming marathon.

    I have had this pair of Altra, though it does take some getting used to.

    The mid-sole is not as bouncy as other shoes I’ve worn, but these shoes do provide plenty of responsiveness, which makes them a competitive racer.



    • Very durable
    • Responsive feel
    • Lightweight
    • Zero drop
    • Plenty of room in the toe box for natural foot flexion


    • Not much cushioning between feet and terrain
    • Bottom of shoes feels very hard, nearly like hard plastic
    • Shoelaces are VERY long


    I’ve enjoyed every mile of the Impulses and have enjoyed remaining injury-free. I’m almost certain those two are related!

    I look forward to reaching 750 miles with these Impulses. Stay tuned!

    I give the Impulses a high score because of their durability and speed. I set a new record in the half marathon with these, so they deserve a great score from me!


    This expert has been verified by RunRepeat. Reviews are neutral, unbiased and based on extensive testing.

  • 90 / 100 | GetOutThereGear

    With a great balance between support, cushion and weight, this shoe have also been great for speed workhouts.

  • 92 / 100 | runnersgarden

    They feel so good. Big toe box. I'm 6 miles and there is no blisters, no hotspot.

  • 90 / 100 | Road Trail Run

    The Altra Impulse is classified by Altra as a stability shoe but neutral runners seeking a light, stable, fast, well cushioned forefoot and a roomy well secured toe box should definitely consider the Impulse as a fast every day trainer and racer.

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  • The Altra Impulse comes with an enhanced midsole, delivering flexible stability when necessary. It uses the brand’s notable midsole technologies that enhance stability and the flex grooves that deliver maximum flexibility.
  • This road shoe also comes with built-in drainage holes that keep foot well-ventilated. It allows superior air-flow and releases moisture efficiently, keeping the foot dry.

The Impulse is true to its size. The midfoot and the heel area delivers comfortable and snug fit while the forefoot is a bit wider, allowing toe to splay. This shoe accommodated those runners with medium foot measurements and those with slightly wider foot. This is available in standard D and B widths for men’s and women’s versions respectively.

The outer sole of the Impulse uses the brand’s FootPod Outsole. It follows the bones and the tendons of the foot to deliver flexibility. It allows the foot to flex where it wants to, delivering a more responsive and enjoyable ride.

The same as the Altra Timp 1.5, the shoe uses the ultra-light EVA midsole with the A-Bound technology and InnerFlex system. The EVA and the A-Bound technology delivers reliable cushioning for a responsive ride and comfortable underfoot protection. The InnerFlex technology gives maximum flexibility and encourages natural foot movement.

The H2Flo technology is also used in the midsole. There are built-in holes in the midsole to keep the foot breathable and it releases moisture efficiently to keep the foot cool and dry.

The midsole also uses the built-in Varus Stability wedge that provides the needed support for pronation control without pushing up the arch just like other traditional stability running shoes.

The upper of the Altra Impulse uses the quick-drying air mesh that releases moisture quickly and provides maximum breathability. The heel claw construction wraps the heel snugly to provide added support. This works accordingly with the A-Wrap design that wraps the midfoot snugly and gives a roomy toe-box.