• 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.

  • 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: 11.4oz
    Women: 8oz
  • Heel to toe drop
    Men: 5mm
    Women: 5mm

    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: 30mm
    Women: 30mm
  • Forefoot height
    Men: 25mm
    Women: 25mm
  • Width
    Men: Normal
    Women: Normal
  • Release date
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.

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94 / 100 based on 2 expert reviews

  • 94 / 100 | Runner's World | | Level 2 expert

    The MTL Cirrus has a light and firm feel for shooting up the mountain, even when it gets so steep you might want to use your hands.

  • 94 / 100 | Podium Runner | | Level 1 expert

    The all-new Merrell MTL Cirrus is a comfortable, protective, and highly durable shoe built for the toughest trails and conditions.

  • First look | Merrell

  • First look | Engearment

  • First look | TrailAndUltraRunning |

Become an expert

- Outdoor adventures are the specialty of the Merrell MTL Cirrus. This trail running shoe features an uncluttered design to allow runners to streak through the paths swiftly and confidently. The outsole unit has the versatile Vibram® Megagrip layer with aggressive gripping lugs while the platform has a compression molded ethylene vinyl acetate (CMEVA) and the TrailProtect™ shielding technology.

- The upper unit of this Merrell running shoe uses a lightweight mesh. The thinness of the material and the presence of breathing pores aim to make the whole package lightweight and breathable. Synthetic prints reinforce the mesh, protecting it from sagging or tearing apart quickly. A wraparound heel counter made of thermoplastic polyurethane (TPU) keeps the foot inside the interior chamber.

The Merrell MTL Cirrus was constructed to be true to size. Even the product page on the Merrell website has affirmed the description. Still, it would be beneficial for consumers to try on a pair first to achieve the desired in-shoe wrap.

When it comes to width, the available options are D – Medium for men and B – Medium for women. Those with narrow and medium foot dimensions are the ones who are likely to enjoy the fit profile of this shoe.

The outsole unit of the Merrell MTL Cirrus is made of the Vibram® Megagrip, a compound that is touted to be highly resistant to abrasion. The job of this feature is to protect the midsole from the sharp surfaces and trail debris. It also makes sure to provide traction on both dry and wet surfaces. Megagrip is a popular technology; it’s even used in revered shoes like the Hoka One One Speedgoat 3.

Aggressive and opposite-facing gripping lugs pockmark the surface of the external pad. These protrusions are meant to heighten grip over the ground, giving precise steadiness and movement control throughout the running session. The various shapes and positions of these lugs help with traversal on slanting topography.

The midsole unit of the Merrell MTL Cirrus uses compression molded ethylene vinyl acetate (CMEVA). This piece runs the entire length of the shoe, providing support to the entire underside of the foot. This industry-standard foam has been touted to be lightweight, reactive to movements, and able to resist sagging.

The TrailProtect™ is a rock plate that is placed between the midsole and the outsole. This sheet acts as a shield against jagged rocks, irregular surfaces and other potentially harmful debris on the ground.

An insole made of polyurethane is placed right above the primary cushioning system. This add-on offers a bit more oomph to the underfoot experience. It can be removed or replaced with a custom insert.

The outer part of the Merrell MTL Cirrus’ upper unit is made up of a breathable mesh. This sheet offers lightweight and flexible coverage for the foot. Breathing holes adorn the front and sides, allowing environmental air to enter the inner compartment to maintain a cool and dry ride.

Synthetic prints are used for the overlay system of the upper. These additions have grid-like structures that reinforce the façade and keep it from tearing apart or losing integrity.

The Hyperlock™ is a thermoplastic polyurethane heel counter that holds the heel in place and prevents it from wobbling or getting out of the foot-chamber unexpectedly. It has the word ‘MERRELL’ emblazoned on it to help with brand recognition.

A breathable mesh is used for the inner sleeve. The seamless construction of this shoe-part allows the wearer to enjoy an irritant-free run while the open-weave design further encourages ventilation.

The M Select™ FRESH is a technology that uses antimicrobial agents to prevent odor-causing germs from proliferating inside the shoe.

The traditional lacing system helps the wearer when it comes to adjusting the tightness or looseness of the fit.