Verdict from 9.6 hours of research from the internet

5 reasons to buy

  • The All Out Peak features a synthetic breathable upper and reflective design for increased visibility especially when running in low light.
  • Most runners applauded the HyperWrap 360 Degree Fit System of this shoe because it keeps the foot in place for agility and stability.
  • Majority of the runners took note of the All Out Peak’s comfort and impressive support.
  • This shoe is true to size.
  • It features the TrailProtect technology that provides sole protection.

3 reasons not to buy

  • Moderately high-priced shoe.
  • The Merrell All Out Peak has a narrow fit, which disappointed some users.
  • This shoe is not as durable as expected based on some reviews.

Bottom line

The Merrell All Out Peak is a trail neutral running shoe that is stable enough for rough trail runs. Based on some reviews, the shoe still needs some improvement but overall, it is still a worthy investment. It is ideal for runners who are looking for a comfortable pair of shoes for daily training.

Tip: see the best running shoes.

Expert reviews:

User reviews:

  • Stability and protection are the best things the Merrell All Out Peak offers. It comes with the HyperWrap 360 Degree Fit System that locks the midfoot in place for an enhanced stability and agility.
  • It also comes with a built-in TrailProtect™ pad that delivers reliable underfoot protection. It is designed to keep foot well protected from stone bruising and sharp objects while running on rough surfaces.

The All Out Peak fits true to size. The shoe fits normal to a little roomy foot, accommodating comfortably those with regular or slightly wide foot shape. This shoe is available in standard running shoe width.


This shoe uses the Vibram Megagrip Outsole that is designed to deliver an impressive grip on both wet and dry surfaces. The carbon compound strategically placed in the outsole gives added strength and durability.

It also comes with a built-in TrailProtect pads that keep foot protected on rough terrain. The TrailProtect is also present in some popular running shoes from Merrell like the Trail Glove 5 shoe.


The All Out Peak utilizes the brand’s Uni-Fly midsole that disperses impact and delivers enough amount of underfoot protection for high mileage runs. On the heel area is the air cushion that gives reliable and lightweight cushioning. It efficiently absorbs shock during impact for a much responsive ride. The molded nylon arch shank delivers added flexibility and it enhanced stability on rugged terrain.


The upper of the Merrell All Out Peak features a synthetic leather and air mesh coverage that gives durable and breathable environment. It works perfectly with the HyperWrap 360 Degree Fit system that hugs the midfoot and holds it in place for a more natural and enhanced agility and stability. This shoe also has a removable footbed that is anti-microbial in nature, keeping foot dry and odorless.

Size and fit

True to size based on 458 user votes
Small (8%)
True to size (87%)
Large (5%)
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How All Out Peak compares

This shoe: 88
All shoes average: 85
58 99
This shoe: $130
All shoes average: $130
$60 $250
This shoe: 10.4oz
All shoes average: 10.4oz
5oz 24oz
Author
Jens Jakob Andersen
Jens Jakob Andersen

Jens Jakob is a fan of short distances with a 5K PR at 15:58 minutes. Based on 35 million race results, he's among the fastest 0.2% runners. Jens Jakob previously owned a running store, when he was also a competitive runner. His work is regularly featured in The New York Times, Washington Post, BBC and the likes as well as peer-reviewed journals. Finally, he has been a guest on +30 podcasts on running.

jens@runrepeat.com