• 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.

  • Price
  • Weight
    Men: 8oz
    Women: 6.6oz
  • Heel to toe drop
    Men: 6mm
    Women: 6mm

    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: 23mm
    Women: 23mm
  • Forefoot height
    Men: 17mm
    Women: 17mm
  • Width
    Men: Normal
    Women: Normal, Wide
  • Release date
  • Special editions
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.

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 |

Become an expert

  • 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.