We spent 9.1 hours reading reviews from experts and users. In summary, this is what runners think:

6 reasons to buy

  • Many people felt that the Merrell All Out Crush 2 was comfortable.
  • The upper was lauded for preventing trail debris and soil from infiltrating the interior foot-chamber.
  • Many consumers appreciated the grip of the outsole on soft surfaces and rocks.
  • Most runners liked the lightweight nature of this running shoe.
  • The spacious toe box allowed natural toe-splay, based on several reviews.
  • The durability of the materials used for the All Out Crush 2 was deemed reliable.

1 reasons not to buy

  • According to a tester, the lightness of this product was a catalyst for in-shoe wobbling and foot instability.

Bottom line

The Merrell All Out Crush 2 received quite a positive response from trail running enthusiasts who wanted dependable surface traction and agreeable in-shoe coverage. Most of those who have tested this neutral shoe liked its lightweight build, as well. Conversely, several people griped about its sizing scheme and its unstable interior fit.


Terrain: Trail
Arch support: Neutral
Weight: Men: 8oz | Women: 6.6oz
Heel to toe drop: Men: 6mm | Women: 6mm
Pronation: Neutral Pronation
Arch type: High arch
Material: Vegan
Strike Pattern: Midfoot strike
Distance: Competition
Heel height: Men: 23mm | Women: 23mm
Forefoot height: Men: 17mm | Women: 17mm
Brand: Merrell
Type: Low drop
Width: Men: Normal | Women: Normal
Price: $100
Colorways: Black, Blue, Green, Grey, Orange
Special editions: 1 special editions
Small True to size Large
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A top rated Trail running shoe
Top 4% most popular running shoes

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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85 / 100 based on 1 expert reviews

  • 85 / 100 | RunSociety | | Level 2 expert

    I believe in dreaming big. And I believe that Merrell All Out Crush 2 can help me become a better and faster trail runner. What I need to do next is to hit the trails more often and longer with AOC 2.

  • First look | Shop Zappos |

  • First look | Merrell

  • First look | Shop Zappos |

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  • The Merrell All Out Crush 2 is an update to a fresh series of trail companions that are meant for neutral pronators. It features an updated look, using an uncluttered design to shave off weight and bring a clean façade. Multilayered mesh prevents soil and other trail elements from entering the foot-chamber, yet ventilation pores are present to ensure a breezy run.
  • EVA or ethylene vinyl acetate makes up the primary midsole unit of this running shoe. It is meant to keep the foot cushioned throughout the activity. A protective layer is sandwiched between the outsole and midsole, acting as a shield against potentially rough surfaces and debris.

The Merrell All Out Crush 2 is a bit larger than the regular sizing scheme, so it is recommended to get half-a-size small to achieve a more relaxed in-shoe experience. The available width is B – Medium for women and D – Medium for men. The semi-curved shape of this running shoe mimics the curvature of the human foot.

The Merrell All Out Crush 2, one of the affordable running shoes in the market, makes use of the M-Select™ GRIP which is a full-length rubber compound that protects the rest of the sole unit from wear and tear. It also gives surface traction, an essential attribute during those trail exploits.

Semi-aggressive gripping lugs heighten traction. These protrusions are particularly helpful on technical terrain.

Flex grooves allow the forefoot to bend and prepare for the toe-off phase of the gait cycle.

The midsole unit of the Merrell All Out Crush 2 features a full-length EVA foam. Its purpose is to carry the foot throughout the running session and keep it cushioned. It also attenuates impact shocking during the striking phase.

Debris and potentially injurious surfaces may prove to be hazardous to any trail runner. The TrailProtect pad is a layer that guards the foot against irregular terrain and other elements.

An EVA footbed has been integrated onto the platform. It offers additional cushioning for the wearer’s foot.

Synthetic mesh is a durable material that’s designed to offer a secure coverage. It has multiple layers to prevent minute trail rubbish from entering the foot-chamber. This layered approach is a direct answer to the fact that prominent ventilation pores pockmark the façade.

TPU overlays reinforce the structure of the Merrell All Out Crush 2. They also assist the traditional lacing system in giving a customizable fit.

The heel lining features Lycra fabric, which is a soft and stretchable covering that hugs the foot and keeps it free from irritation.

Running in low-light conditions won’t become a hindrance to runners because this trail companion has reflective details.