Notable elements of the Merrell Momentous

- Off-road adventures are the specialty of the Momentous, an addition to the roster of trail running shoes from Merrell. The silhouette is made of a knitted fabric that’s reinforced with a thin synthetic print. A burrito tongue provides a semi-seamless in-shoe experience as only one side of the instep can be widened. An antimicrobial coating protects the foot from odor-causing microbes while a breathable lining helps in keeping the foot dry.

- A compression-molded ethylene-vinyl acetate foam runs the entire length of the shoe, and it’s accompanied cushioning pods in the heel and forefoot, as well as a polyurethane insole. A rock plate rests between the platform and external pad, shielding the foot from sharp objects and rough surfaces.

- The outsole of the Merrell Momentous is made of a rubber compound that is made to provide traction over dry and wet surfaces. Gripping lugs enhance the grip, particularly over uneven ground.

Size and fit

The Merrell Momentous was constructed to be true to size. However, several consumers noted that the sizing scheme was actually bigger than their ideal choices. It is recommended to try on the shoe first before making a purchase decision to fully achieve an accommodating in-shoe hug.

When it comes to width, the available options are D – Medium for men and B – Medium for women. This shoe welcomes those who have narrow or medium foot shapes.


Vibram® Megagrip is used for the outsole unit of the Merrell Momentous. This technology is comprised of a sturdy rubber that is tasked with protecting the midsole from wear-and-tear. It is also meant to provide dependable traction on dry and slick topography.

A bevy of gripping lugs pockmarks the surface of the Megagrip rubber. The arrow-shaped structures of these protrusions are to heighten grip, particularly on slanting ground. Upward and downward traversals are the ones that benefit the most from such a design.


The midsole unit of the Merrell Momentous is made of compression-molded ethylene vinyl acetate (CMEVA), a durable and long-lasting compound that’s also crafted to be flexible and responsive. It mitigates the landing impact and energizes the toe-off.

Cushioning pods are placed in the forefoot and heel. These add-ons help to improve the reactiveness of the underfoot platform.

The TrailProtect™ is a protective sheet that’s placed between the midsole and outsole. This layer is meant to shield the foam midsole and the underside of the foot from potentially harmful elements such as jagged debris and rough surfaces. It doesn’t sacrifice flexibility or weight. Many Merrell shoes use the TrailProtect™, including the Trail Glove 5.

An insole made of polyurethane is placed right above the primary cushioning system. The job of this piece is to provide a soft base on which the foot can stand. It can be removed or replaced with a new one.


The upper unit of the Merrell Momentous features a knitted material, which has a seamless construction to prevent hot spots and chafing. The bevy of breathing pores that fill its form is for the passage of air into and through the foot-chamber. Ventilation keeps the foot cool and dry during the run.

Thin prints serve as the overlay system of this neutral running shoe. These grid-like layers cover the sides and the front, staving off damage while helping with in-shoe security and fit-adjustment.

A burrito tongue prevents crumpling or material shifting during the run. It’s somewhat of a compromise between having a seamless instep design and a shoe-opening that can be widened effortlessly.

A Hyperlock™ heel counter is placed on the heel part. This outside cup has the purpose of holding the back of the foot in place, saving it from accidental shoe removals or in-compartment wiggling.

The M Select™ FRESH antimicrobial treatment is utilized in this shoe. This feature prevents odor-causing microbes from fostering.

Facts / Specs

Terrain: Trail
Weight: Men 11.7oz / Women 9.8oz
Drop: 4mm
Arch support: Neutral
Forefoot height: 25mm
Heel height: 29mm
Pronation: Neutral Pronation / Supination / Underpronation

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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.