Facts

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Terrain

Road

Shoes best for road, track and light gravel. See the best road shoes.

Trail

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 high or medium high arches. See the best neutral shoes.

Stability / overpronation / normal arch

Shoes for runners who need arch support (Around 45% of runners). Best for runners with a normal 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.

Daily running

Cushioned shoes for your daily easy running. Great comfort. See best shoes for daily running.

Competition

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
$110
Show more facts

Road

Shoes best for road, track and light gravel. See the best road shoes.

Trail

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.

Competition

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.

Summary

We spent 6.1 hours reading reviews from experts and users. In summary, this is what runners think:

6 reasons to buy

  • Many runners thought that it’s a cool-looking shoe.
  • The upper unit is breathable and the lacing is always responsive.
  • There is ample support provided in the arch and it works well for high arched runners.
  • The roomy toe box allows for comfortable accommodation and natural toe splaying.
  • The UNI-FLY mid-sole handles the landing impact and provides an efficient underfoot platform all throughout.
  • Men and women can easily acclimate to the adequate weight of the All Out Fuse.

3 reasons not to buy

  • Some testers complained that the rubber was not able to provide optimum grip.
  • Cushioning isn’t too plush because it’s a model that offers a close-to-the-ground experience.
  • The heel cup was too stiff according to some reviewers.

Bottom line

The Merrell All Out Fuse is the shoe recommended for those who want a comfortable run on short or mid-distances. It can work well on smooth & hard pavement or even trails. It looks great and its performance and quality are mostly above average. It’s still a great option for soft trail running.


Rankings


Ratings

4.5 / 5 based on 162 ratings

5 star
77%
4 star
9%
3 star
4%
2 star
6%
1 star
6%

My Rating

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.

Are you an expert? Apply to contribute here.

83 / 100 based on 9 expert reviews

  • 88 / 100 by Runner's World • Runner's World • Level 5 expert

    Even with the extra cushioning, the AllOut Fuse's ride is firm but remains soft enough for short jogs from your front door to the trailhead.

  • 86 / 100 by Believe in the Run • Meaghan • Level 5 expert

    I would recommend these shoes for short to medium runs on the pavement or packed trails.

  • 85 / 100 by Believe in the Run • Thomas • Level 5 expert

    I would recommend this shoe to a runner looking for an extremely durable shoe that can handle roads and packed trails.

  • 83 / 100 by Running Times • Running Times • Level 5 expert

    Merrell's All Out Fuse was a hit with those who enjoyed its minimalist pedigree, providing flexibility and low-profile agility, yet with a bit more underfoot and a larger heel-toe drop than the company's Glove models.

  • 83 / 100 by Competitor Running • Competitor Running • Level 3 expert

    The ride is somewhat basic and very natural (but not bone-jarring or raw), offering up an infinitely agile sensation in every stride.

  • 75 / 100 by Ginger Runner • Ethan Newberry • Level 3 expert

    While I can see this shoe being good for form work and gait analysis on softer ground (grass, dirt, etc) or roads, I don’t see the shoe working for longer hauls or trail running.

  • 88 / 100 by Feed the Habit • Jason Mitchell • Level 2 expert

    Make no mistake, these are still minimalist shoes and the forefoot protection will leave your feet reeling when running on sharp, pointy rocks.

  • 58 / 100 by Gear Diary • Carly Z • Level 2 expert

    I am not sure what exactly made the shoes set my knee off, but I suspect it is because they aren’t perfectly flat; there’s a slight rise to the heel versus the toe, and I tend to do best with pancake flat shoes.

  • 85 / 100 by Outside Slacker • Outside Slacker • Level 1 expert

    Though these shoes are supposed to be road runners, I believe that they can also handle a fair amount of trail pounding.

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Updates to Merrell All Out Fuse

  • Merrell completes its cast of trail shoes by unveiling a road to trail hybrid in the All Out Fuse. Instead of its usually moderate to super aggressive outsole, Merrell uses fairly regular rubber pattern that relies mainly on a “grippy” rubber compound for versatile and do-it all traction.
  • Speaking of versatility, this minimalist shoe brings enough cushioning to the party to make it as a viable option for mid-distance training sessions. The All Out Fuse is also a solid alternative for those who are looking for a taste of the barefoot experience without totally giving away much-needed support and protection.
  • Merrell incorporates a slightly stiff sole that will delight most speedsters, but gives that hint of plush cushioning for a lightweight shoe to lessen the impact of landings and to offer those who are looking for a transition shoe more underfoot protection on the road or trail.

Merrell All Out Fuse size and fit

The fit is average throughout from the heel to the forefoot. It includes a toe box that has ample room for the toes to splay and to accommodate runners whose feet are a bit wider than usual. Medium is the offered width of the All Out Fuse. The sizing runs true and is sold in sizes 5 to 15 for the men’ and 4 to 11 for the women’s.


Outsole

The lug pattern on the outsole is not as aggressive as those designed purely for the outdoors. Micro lugs are featured on the outsole for more consistent and versatile grip on the road or trail. Instead of the Vibram outsole that is used in other All Out models, Merrell uses its own M Select Grip in order to have more traction and durability.


Midsole

The low to the ground feel with decent underfoot ground feedback is made possible by the UniFly midsole. It is made of high-grade EVA, which is why it has more than average durability and cushioning. The cushioning provided by this foam is quite plush despite not adding much to the shoe’s weight. Merrell utilized this foam also because it effectively disperses shock.


Upper

An incredibly breathable and abrasion-resistant AirMesh covers a large part of the upper. Giving support and structure to this fairly minimalist upper is the TPU overlays. Merrell’s Omni-Fit Lacing System is a unique pattern of the eyelets and the laces that deliver a lockdown feel and personalized comfort. Inside the shoe is a 2mm insole for a more foot-hugging fit and plush comfort.