• 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: 3.9oz
    Women: 3.9oz
  • Heel to toe drop
    Men: 4mm
    Women: 4mm

    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: 9mm
    Women: 9mm
  • Forefoot height
    Men: 5mm
    Women: 5mm
  • Width
    Men: Normal
    Women: Normal
  • Release date
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.

Are you an expert? Apply to contribute here.

77 / 100 based on 2 expert reviews

  • 65 / 100 | The Davey Train

    They don't breathe enough,there's not enough ventilation getting through… the tongue flops all over, it's way too thin, and I'm busting through the sides of it.

  • 79 / 100 | Fellrnr

    The Piranha is an ultralight shoe that provides a reasonable level of cushioning for its weight.

  • First look / Unboxing | Shop Zappos

Apply to become an expert

  • The Piranha 5 unveils several changes that should make it even better than before. As with almost every release of this line, the upper gets a slight revamp. Gone are the synthetic overlays, except in the forefoot. The upper is a near seamless one with printed overlays. This modification allows the upper to really mold to the runner’s foot. Since this is an almost seamless upper, it greatly reduces the risk of hot spots or irritation in the interior.
  • Fans of the Piranha series will notice that the heel is very flexible this time around. Only a small tab sitting on top of the sole holds the heel in place. This is a change that should delight most minimalist runners.
  • Lastly, the outsole gets a thorough makeover. There are presently hard and plastic lugs as opposed to pure rubber in the previous version. It does not make the Asics Piranha 5 a trail shoe, but the lugs make running on asphalt enjoyable.

The fit and sizing of the 5th installment of the Piranha are regular. As with most pure flats, this has a snug fit from the heel to the forefoot. The toe box offers just enough room for the toes to splay. Runners with average or narrow foot should be able to get the most out of this fit. Available widths are D and B while sizes are from 6 to 15 for the men’s and 5 to 12 for the women’s.

Asics’ proprietary DuoSole is an extremely light rubber with adequate durability. It is one of the biggest reasons why the Piranha 5 is an ultra-light shoe. There are numerous hard, plastic lugs in the forefoot for added bite on different surfaces. In comparison, the Saucony Kinvara 10 makes use of a modified ethylene-vinyl acetate (EVA) in its outsole.

The very popular Solyte midsole is the main component in this area. This is slightly firmer than some of Asics’ foams, which makes it an ideal platform for faster and more powerful takeoffs.

The upper is also ultralight and breathable. There are printed overlays for lightweight support. An industrial-grade sockliner provides enhanced comfort in the shoe.