Merrell All Out Rush

8.4
8.4 score
[Editors rating (8.5) + Users rating (8.0)] / 2 = Runnerclick score (8.4)/10

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Editor rating: 8.5 / 10
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Merrell All Out Rush Review Facts

The Merrell All Out Rush belongs to the M-connect series, which embodies a theory behind all of the shoes belonging to the line. The low millimeter drop height provides the low profile necessary to get accustomed to seemingly barefoot trail running while still providing a good deal of comfort and protection during your run. This shoe can be considered a minimalist enthusiast’s ideal trail shoe with the benefit of still being lightweight. The Merrell All Out Rush was designed to hit a balance between responsive feel and suitable protection that will deliver the best performance and experience for the user, so does this shoe really live up to the experience that it promises to provide?

Pros
  • The durable mesh upper is very breathable and will keep users warm, in addition to being well circulated, during more hostile outdoor conditions and activities
  • Infused TPU protective toe cap that provides a great amount of outer protection from the many elements that may be encountered outdoors
  • Hits of reflective detailing for safety during low light runs
  • In-house Merrell Unifly midsole material is great for comfort, responsiveness, and stability
  • M Select Grip made traction and control on varies terrains a breeze
Cons
  • The Omni Fit lacing system may cause pain for some users, more specifically a pinching in the forefront area after long periods of wear
  • The toebox region may fall under the categorization of having too much real estate for runners with more narrow feet
Outsole
Outsole

Outsole

The outsole is where the Merrell All Out Rush makes a name for itself, clearly standing out against the competition. The outsole features the M Select Grip, which is 5 millimeter individually separated aggressive circular lug pads on the bottom that assist with superior traction on loose surfaces.

The toe and heel area have loose ridges that only enhance grip and traction while helping you propel yourself properly over compromising terrain. The thick rubberized outsole is very protective for your underfoot. If you're looking for a shoe that offers protection and the guarantee of a good grip on multiple surfaces, the M Select Grip outsole belonging to the Merrell All Out Rush is a good outsole to have under your foot.
Midsole
Midsole

Midsole

The midsole on the Merrell All Out Rush is another unique and amazing feature that enhances the overall experience of the shoe. The in-house Merrell made Unifly material can found on the midsole to provide many benefits to the user of the shoe.

Unifly is the midsole foam material that was technologically developed by Merrell. Tt possesses firmer material on the heel and forefoot area that behave as shock impact absorbers. There is a softer foam material in the midsole bridging the gap between both firm shock impact absorption material pads. This softer material is responsible for the responsiveness that you will get from the shoe, translating what's beneath you on the ground.
Upper
Upper

Upper

An extremely breathable lightweight mesh and urethane blankets the majority of the upper. The patented Omni Fit lacing system can also be found on the upper, which depending on your foot size, can be a good amount of security or overly secure, causing discomfort.

The All Out Rush offers some reflective hits for safety during evening hour use. The materials that make up the upper make the shoe lightweight, breathable, and warm. A wide toebox can be located in the forefront region of the upper, which is good if you have wider feet, but if your foot is more narrow you may experience slippage due to the great amount of room offered in the toe box area.
Weight
Weight

Weight

The Merrell All Out Rush falls into the classification of being a lightweight trail shoe coming in at 11.1 ounces in the men's version, and 9.3 ounces in the women's version. The overall weight of this shoe is very impressive given the amount of features and protection that also come included in the shoe. This shoe falls in line with the weight class of many average running shoes that don't come with the addition of protecting your foot against outside elements that your may run into during trail running.
Breathability
Breathability

Breathability

The synthetic mesh material used on the Merrell All Out Rush is eye opening due to it exhibiting the wonderful capabilities that a material can provide for running shoe. Breathability is great on this shoe, the upper has a lightweight well ventilated mesh that allows a sufficient amount of circulation for your foot.

The shoe's appearance, at first glance, may seem to keep the heat in and the cool out, but proved to do the exact opposite. Trail running shoes tend to have a habit of using materials that favor protection and durability over breathability but this shoe happens to be very breathable. This shoe will keep you cool thanks to the cool air intake the material allows as trail temperatures heat up.
Comfort
Comfort

Comfort

This shoe is very comfortable for a trail running shoe, keeping in mind that it was created to endure conditions that require constant protection. It has found a balance between sufficient protection and sustainable comfort. The comfort begins with an upper that's made from a breathable, lightweight mesh that contours to the shape of your foot. The midsole follows up with a mix of Unifly foam and EVA adding a level of response and comfort not often associated with a rugged trail running shoe.
Style
Style

Style

The description "stylish" and trail shoes often appear to be antonyms when brought up in the same conversation, but this isn't the case with the Merrell All Out Rush trail running shoe. The aesthetics of the upper are very eye catching, having a solid uniform mesh color, complimented by a contrasting color on the midsole that's typically very vibrant in nature. The shoe sits low to the ground, giving it a very fashion forward minimalist look, while giving hints at a functionally aggressive outsole underneath.
Durability
Durability

Durability

The Merrell All Out Rush is a very durable shoe, just by design alone, there are noticeable aesthetic cues that allude to this shoe's ability to last. The thick aggressive rubberized outsole was designed to endure conditions that other running shoes would fail miserably at. The mesh is very tough, lasting the test of time and managing to be lightweight at the same time. Even with the shoe being used for harsh running conditions, the shoe didn't break down or falter in the durability department.
Protection
Protection

Protection

There is a decent level of basic protection available, but not as much as would be desired for the types of terrain that this shoe was meant for. Rocks, and many other hazards are common trail occurrences and this shoe lacks a rock plate. The Merrell All Out Rush does however offer a TPU protective toe cap for other seen and unseen hazards that you may encounter.
Responsiveness
Responsiveness

Responsiveness

Decent responsiveness feel of the ground while not being overly cushy or too stiff. The softer material built into the Unifly midsole is the primary factor responsible for the great amount of responsiveness received from the shoe. At first glance it's possible to assume that such a generously coated outsole would naturally limit the responsive ability of the shoe, but the Merrell All Out Rush remains responsive as ever when put to the test.
Support
Support

Support

The Merrell All Out Rush is a daily neutral trail running shoe. The Unifly midsole foam mixed with Ethylene Vinyl Acetate, or EVA, is responsible for the majority of the support you will receive from this shoe. The shoe provides a good amount of support for runners who don't have problems with overpronation or supination. If you're aware about the roll of your foot leaning in either direction other than a neutral direction, it would be better to explore other shoe options that would support your style of running more effectively.
Terrain
Terrain

Terrain

The type of terrains intended for the Merrell All Out Rush are trails and off-road tracks. During testing it was noted that these shoes even work well on pavement type surfaces. The durable and aggressive M Select outsole widens the spectrum of surfaces that this shoe is allowed to traverse without much difficulty, and this shoe even performed well on snow saturated surfaces.
Traction
Traction

Traction

This shoe proved to perform very well over many trail types, from beginner trail paths to the more experienced. No matter what the surface, have no fear of slip when using the Merrell All Out Rush for grip. The design of the outsole was strategically set up to optimize the traction on the plethora of paths and trails you may come across while wearing these shoes.
Price
Price

Price

The initial retail price for the Merrell All Out Rush was slightly over $100 but has significantly decreased overtime. These shoes can be found for a great deal as they have been discontinued by the original manufacturer. The Merrell All Out Rush already provided great value at its initial price, but proves to provide even more value for your pockets with a substantial price drop.
Flexibility
Flexibility

Flexibility

The All Out series was specifically developed for runners who desired protection while still having the ability to move naturally and this shoe nails the balance of both masterfully. The M Select lugs located on the outsole make way for more movement than most other trail running shoes while retaining its superior grip. The upper synthetic mesh follows your foot with each flexible turn and twist you desire. The flexibility factor with this shoe is nothing short of amazing.
Stability
Stability

Stability

Merrell has come up with a lacing system called the Omni Fit, which will emulate the custom fit of a glove and keep the midsection of your foot locked down in place while you run. The heel area provided a good amount of stability that took any unnecessary stress off of the joints or the arch area.

Runners who seek to use the Merrell All Out Rush should keep in mind that this is a neutral trail running shoe and if your run style requires any additional stability aiding features, you should seek a more suitable trail running shoe option to fit your needs.
Drop
Drop

Drop

The drop for this shoe stacks up at 6 millimeters, which keeps the overall profile, and your foot, low to the ground. The goal of this shoe was to provide protection while remaining minimal in design, avoiding becoming bulky because of additional features, and a low drop height puts emphasis on how well this shoe stuck closely to that idea.
Key Features of the Merrell All Out Rush
Key Features of the Merrell All Out Rush

Key Features of the Merrell All Out Rush

  • Water repellent mesh upper


  • M Select Grip outsole


  • Unifly midsole materials


  • TPU toe cap


  • Omni-Fit lacing system


  • M Select FRESH odor prevention system


  • Vegan friendly shoe option


  • Bottom Line
    Bottom Line

    Bottom Line

    The Merrell All Out Rush is packed with an abundance of features and has the ability to perform well over numerous amount of terrains and conditions, but is this shoe the right shoe for your running needs? The All Out Rush is a daily runner for runners who have to experience rougher terrain than just pavement.

    These shoes are excellent for harsh element runs like traversing snow and keeping you warm in the process, to utilizing the trademarked M Select grip to stick to gravel and other looser materials you may have to face along a dry trail. These shoes even perform well on regular pavement although that wasn't their direct intended purpose. Give these shoes the green light if you know you will be experiencing more challenging terrain and need a shoe that will support and protect you throughout all of your travels.