• Discontinued
  • 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
    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.

  • Use

    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.

  • Price
  • Weight
    Men: 10.8oz
    Women: 8.8oz
  • Heel to toe drop
    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
    Heel height
    Men: 24mm
    Women: 24mm
  • Forefoot height
    Forefoot height
    Men: 18mm
    Women: 18mm
  • Width
    Men: normal
    Women: normal
  • Release date
    Release date
Show more facts


We spent 7.5 hours reading reviews from experts and users. In summary, this is what runners think:

5 reasons to buy

  • Many were happy by how comfortable and lightweight the Merrell All Out Terra Light.
  • The shoe delivers durable traction on both hard and soft grounds, based on some reviews.
  • The upper fabric wicks moisture effectively.
  • It has the right amount of cushioning and flexibility.
  • The shoe has a great fit based on some reviews.

2 reasons not to buy

  • Some runners hoped to get different color options for this shoe.
  • The sole unit is not as durable as expected.

Bottom line

The Merrell All Out Terra Light is another light trail running shoe from Merrell. With its cushioning, traction, water resistant finish and breathability, this shoe ideal for uptempo training and light trail running.


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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  • First look / Unboxing | TV Walk Tall

    TV Walk Tall

    This YouTube channel has only first look videos - no reviews

  • First look / Unboxing | Webtogs


    This YouTube channel has only first look videos - no reviews

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Updates to Merrell All Out Terra Light

  • The Merrell All Out Terra Light comes with a pack of decent improvements. The sole of the shoe has the 6mm lugs in its Vibram outsole, and they are designed for better traction and for an excellent grip on trails. Its grip is actually its biggest improvement, making the shoe versatile for mud, wet grounds, loose grounds, and other tough terrains.
  • The fabric of the shoe is also made more versatile. It has the 3D printed breathable mesh with the Ventilated technology, which makes the shoe cool to the core. The airflow is allowed to go in as the heat comes out, keeping the foot cool and comfortable no matter the weather or temperature is.
  • Merrell also uses the M-Select Fresh technology in this shoe. This technology eliminates sweating that causes bad odor and bacteria to grow. The microbes break down the perspiration through the natural enzymes.

Merrell All Out Terra Light size and fit

The All Out Terra Light has a comfortable fit for standard foot size. The toe box is in the standard width, as well as the medial and heel part of the shoe. The inner feel offers a snug fit experience which is enhanced by the secure lockdown features of the synthetic lacing system.


The outsole of the All Out Terra Light has the Vibram, a rubber compound set in diamond shaped lug pattern for better traction and grip. It keeps the shoe durable and efficient on loose dirt and different trail hazards. It is also a great shoe on snow, mud, and watery grounds.


For the midsole, Merrell utilizes the Uni-Fly Technology, a rigid midsole design to disperse impact through the foot, reducing the pressure from the arch for more protection and comfort. There is also a removable Microfiber Foot bed or insole that is made from antimicrobial materials. For added underfoot protection, Merrel also adds the TrailProtect pad.


The upper of this shoe has the new design of fabrics made with 3D printed breathable mesh featuring the Ventilated technology for a cooler and more comfortable running experience. Its woven fabric makes the shoe an ideal running shoe for trail running, perfect on both cold and hot weather. There are some reflective details added to it for increased visibility when running in dim or low light location. The lacing system is based on the synthetic leather lacing, and it offers a more secure but comfortable fit.