Arch support
Daily running
M: 255g | W: 231g
Heel to toe drop
M: 6mm | W: 6mm
Heel height
M: 22mm | W: 22mm
Forefoot height
M: 16mm | W: 16mm
Widths available
M: Normal - D | W: Normal - B
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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.

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.


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.


We spent 9.6 hours reading reviews from experts and users. In summary, this is what runners think:

6 reasons to buy

  • The Natural Fit is a schematic kind that forms an anatomical design to enhance comfort.

  • The Injected EVA allows a plush and adequate underfoot platform on which to rest the foot during idle moments and actual performance noted some runners.

  • The Shoc-Zone employs a low-profile drop from the heel to the toe, essentially taking advantage of a more natural running efficacy.

  • The Meta-Shank Generation 3 offers more underfoot protection for improved confidence on the trails.

  • The Trailroc design on the outsole gives more traction over the unpredictable terrain, according to many runners.

  • The average weight of the Trailroc 255 allows runners acclimate well to it without worrying that it’ll drag them down.

4 reasons not to buy

  • Some runners experienced the outsole unit get separated from the shoe after only a few uses.

  • The price is slightly expensive.

  • There were testers who noted that it was one size smaller than what they were used to.

  • A few felt that it needed more cushioning to add a plusher underfoot experience.

Bottom line

The Trailroc 255 from Inov-8 is a trail shoe that offers flexible performance and comfort in the off-road paths. Those who need stability are going to enjoy this one because it cradles the midfoot adequately.

World wide, Trailroc 255 is in the top 50% most popular running shoes. The brand, Inov-8, is the 15th most popular.

Map: Shows popularity per continent based on 1010 shoes


4.3 / 5 based on 68 ratings

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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.

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81 / 100 based on 5 expert reviews

  • 65
    Nicholas PangLevel 4 expert
    by Minimalist Running Shoes
    It may have too much protection for non-technical trails or flat trails but for cross country training, it is fine. For racing, I would definitely prefer a lighter and lower to the ground model
  • 96
    Tom CaughlanLevel 3 expert
    by iRunFar
    The Inov-8 255 is my favorite long distance offering from the company and I will continue to keep this shoe in the regular rotation for some time.
  • 84
    ErikLevel 2 expert
    by Running Warehouse
    Even though I have a narrow foot, I found the anatomical fit to allow me to run a little more naturally and get a better feel for the trail.
  • 78
    Rise to ItLevel 2 expert
    by Rise to It
    The sole is ideal on loose and eroded trails where it will bite down while still dispersing impact efficiently on the harder trail surfaces.
  • 95
    Chris PaytonLevel 1 expert
    by A Run Through The Woods
    My overall impression is that I'm definitely a fan of the shoes and I think they're a great fit for some of the tougher mountain terrain.
  • Show moreless reviews
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These are visual presentations, not reviews

Updates to Trailroc 255

The Inov-8 Trailroc 255 features a meta-shank rock plate that is located in the midfoot, protecting the metatarsal heads against stone bruising and sharp rocks. With this hardened rubbers, runners are keep protected while running on rough terrain.

It comes with a medium sized lug pattern. This purpose-specific rubber delivers a versatile traction and enhanced durability.

The shoe also comes with an enhanced upper and a wider forefoot that offers more room for toe splay. The anatomic fit of the shoe follows the natural shape of the foot for a more comfortable running experience.

Trailroc 255 size and fit

The Trailroc 255 is available in standard running shoe length. It comfortably accommodates those with medium foot shape and measurements. It comes with a wider forefoot and medium midfoot and heel area. It is available in standard running shoe width.


The Trailroc 255 features a reliable outsole that comes with a moderately aggressive lug pattern that delivers an impressive grip on hard packed trails and other terrain. It works perfectly with the shoe’s Tri-C compound that delivers impressive grip on wet conditions.

Hard and sticky rubber compound are also strategically placed in the outsole for maximum performance, excellent grip on wet conditions and enhanced endurance. The endurance rubber also gives added durability and grip especially on mixed terrain.


The midsole of the shoe uses the injected EVA midsole foam that delivers resilient cushioning and optimal memory retention. It also features the brand’s 2-Arrow Shoc-Zone that delivers a moderate underfoot cushioning. The Meta-Shank extends from the midfoot to the forefoot and it delivers flexible underfoot impact protection for a much enjoyable ride.


The Inov-8 Trailroc 255 features a synthetic mesh upper that delivers lightweight and breathable coverage. The TPU lacing system gives added support while offering a secure and comfortable fit. The Met-Cradle gives support for the forefoot and secure fit.


Comparison to category means
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