Merrell All Out Crush Light

8.7
8.7 score
[Editors rating (8.5) + Users rating (9.4)] / 2 = Runnerclick score (8.7)/10

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Editor rating: 8.5 / 10
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Merrell All Out Crush Light Review Facts

Merrell is a great example when it comes to being a leader in creating top performing trail-orientated running shoes. Since its inception, the business has involved the development and construction of rugged footwear intended to last on tough terrain. Since the debut of their first footwear products in 1983, the brand has evolved to present trail runners with an excellent shoe that would keep them going no matter what the terrain. One of the results of this evolution is the Merrell All Out Crush Light.

The goal of creating the Merrell All Out Crush Light was to become the best option to give trail runners agility, protection, and comfort on trail type terrains while remaining lightweight and efficient. This version of shoe is a reduced weight version of the Merrell All Out Crush, appropriately adding “light” to the title to specifically signify the loss of one ounce between models. The most important question is, with the weight loss, is there a loss in overall performance or does this shoe trim the fat and become a better shoe? Keep reading  our review of the Merrell All Out Crush Light to find out.

Pros
  • Protective toe cap
  • TrailProtect foot pad
  • Comfortable
  • Lightweight
  • Affordable
  • Solid traction
  • Odor fighting
Cons
  • Harsh terrain can be felt underfoot
  • The midsection drainage holes are no longer present on this model
Outsole
Outsole

Outsole

Merrell has donned these trail running shoes with their M Select Grip, and at first glance you become aware of the aggressive appearance. The outsole is extremely resistant to slipping on both dry and wet surfaces, making this particular mold of outsole one of Merrell's best yet. The entire outsole is saturated with scattered 5 millimeter triangular lugs that were meant for treading through the roughest of terrains while still maintaining a good sense of grip for enhanced traction. The outsole's heel section, as well as the outline of the outsole, has rectangular grooving for additional impact absorption and stability on uneven rough surfaces.

The overall design of the outsole maximizes grip while minimizing the risk of getting rocks and other debris from the trail caught in the grooves of your outsole, which may cause unnecessary irritation. One serious concern about the outsole was the overall durability factor. The outsole is almost flawless in design, but running on varying tough terrain type surfaces does create a perfect storm that makes the 5 millimeter lugs experience a good amount of wear and tear from extended use. The outsole was meant for all terrains, and while the outsole's performance is amazing, the lugs aren't immune to experiencing the effects of damage on tough terrain.
Midsole
Midsole

Midsole

The midsole is where the Merrell All Out Crush Light is where this model had the greatest reduction in weight and resulting in the addition of the word "light" to the name of this particular shoe. Merrell specifically created the Unifly foam midsole to be a midsole that is and comfortable, but remains sturdy and stable at the same time.

The majority of trail running shoes come equipped with heavy protective rock plates for protecting a runner's underfoot, but Merrell has decided to take the innovative route, introducing a TrailProtect plate in the midsole. The TrailProtect plate is lighter and offers a moderate level of protection. The midsole also offers ethylene vinyl acetate, or EVA, material to conform to the foot shape, giving a custom feel and fit versus just a flat footbed for your foot to rest in the shoe.
Upper
Upper

Upper

The upper of the shoe was designed to be durable, since there are many potentially harmful and dangerous obstacles you can face on a trail run. The upper is made of a lightweight, breathable woven mesh instead of the overlaid thermoplastic polyurethane material, or TPU, which was found on the original Merrell All Out Crush.

The other instantly noticeable differences between models is the water drainage holes are absent on the Merrell All Out Crush Light. The tongue of the shoe is well padded and very comfortable, avoiding any pinching or irritation that a user might experience with any other material other than mesh. The upper has genuinely found a zen like balance between comfort and padding that manages to avoid feeling overwhelmingly bulky.
Weight
Weight

Weight

The Merrell All Out Crush Light adheres closely to its name, correctly being categorized as a lightweight trail running shoe. The men's version of this shoe weighs in at 7 ounces while the women's version comes in at just 6 ounces. The original version of the Merrell All Out Crush was already a lightweight shoe, but this version manages to shave off even more ounces thanks to modifications to the midsole.
Breathability
Breathability

Breathability

The breathability on the Merrell All Out Crush Light is great, with the majority of credit going directly to the mesh upper. This model does very well with ventilation for your feet. The mesh material allows cool air to move and circulate inside to avoid any mishaps of overheating during a trail run. The breathable mesh is found almost entirely throughout the upper and even on the tongue of the shoe.
Comfort
Comfort

Comfort

The Merrell All Out Crush Light is a very comfortable shoe. The inner lining is made from soft, padded materials that keep your foot snug, but never choked. The EVA padding in the midsole makes for a comfortable, cushy ride while running in this shoe. The Unifly midsole keeps your foot well cushioned while, at the same time, ensures your foot isn't overly cushioned to the point where support is compromiseed. The majority of the upper is wrapped in a mesh that makes sure things don't become irritable inside. Merrell made sure that at the minimum you'd be able to enjoy a comfortable shoe while on a trail run.
Style
Style

Style

The Merrell All Out Crush Light is a shoe that does wonders aesthetically with minimalist design cues. If you were to imagine all the functionality and protection that comes from trail boots and fused them with a low profile sleek racer, the image in your head would look like the Merrell All Out Crush Light. Merrell obviously made style somewhat of a priority when crafting this shoe. The aggressive outsole makes a statement that can be seen from the side profile of the shoe, and as your eyes move up to the upper, the mixture of mesh and other materials compliment each other to make a very attractively appealing trail running shoe.
Durability
Durability

Durability

The overall durability of this shoe is very good. The upper does an amazing job of holding up under the amount of harsh conditions it will experience over its lifespan. The only area where durability may present a problem is in the outsole and that will be subjectively determined by individual use. The outsole has 5 millimeter lugs that may wear off faster than expected if these shoes are constantly put to the test under harsh conditions. Aside from that, the durability is positively rated.
Protection
Protection

Protection

The toe cap located in the forefront region of the shoe provides a great amount of protection for your toes. The protection is enhanced by Merrell's on TrailProtect pad located in the midsole of the shoe. Trails can be loaded with surprises, but the Merrell All Out Crush Light works very well with keeping you covered in protection.
Responsiveness
Responsiveness

Responsiveness

Thanks to the Unifly foam material located in the midsole, the responsiveness of this shoe is nothing less than outstanding, especially with the addition of a TrailProtect pad built into the midsole for protection. The soft foam material in the midsole allows for your foot to feel everything underneath while still being protected by the padded TrailProtect pad inside. The outsole also aids in the protection of your underfoot, but isn't so thick that things become unreasonably unresponsive overall. The good amount of responsiveness was definitely good to see on this model of shoe.
Support
Support

Support

The support for the Merrell All Out Crush Light is primarily credited to an awesome Unifly foam found on the midsole. The foam is stiff enough to support the weight and joints of the user properly in order to avoid any unnecessary irritating side effects from wear. There is a great amount of cushioning, but not to the point where poor support becomes an issue.
Terrain
Terrain

Terrain

The intended terrain meant for the Merrell All Out Crush Light is trail, which covers terrain from rock to dirt and everything in-between. You will never have to worry about slipping or losing traction on almost any surface. The Tough built outsole offers the grip and stick you really need and appreciate from a trail running shoe.
Price
Price

Price

These shoes provided a serious amount of value at their introductory price and it was only enhanced by the price cut that you're able to find these shoes at now. If you're searching for tough trail running shoes that will last on tough terrain, the price for these shoes make them truly a bargain.
Traction
Traction

Traction

The M Select Grip that characterizes the outsole on the Merrell All Out Crush Light makes traction on almost any surfaces absolutely amazing. The soft, sand-type trails are tread through with 5 millimeter triangular lugs that work well for traction on loose and compact surfaces. If traction is a high priority for your search in a trail running shoe, any Merrell shoe offering with the label M Select Grip will guarantee a good amount of traction.
Flexibility
Flexibility

Flexibility

The mesh material on the upper of the Merrell All Out Crush Light makes your foot feel free and flexible. The entire shoe is very sturdy, but not to the point where it affects your ability to move naturally. The mesh upper molds to your foot and flexes along with every movement. The separation of space between the 5 millimeter lugs on the outsole make this model very flexible during every run.
Stability
Stability

Stability

A good amount of stability can be found on the Merrell All Out Crush Light thanks to so many factors at play optimizing the overall stability experienced on this shoe. The stiff foam in the midsole along with the great hold in the midsection make this shoe a very stable option, ensuring that your foot won't slide around during any of your runs.
Drop
Drop

Drop

The heel to toe drop on the Merrell All Out Crush Light sits at a low to the ground 6 millimeters. The shoe was meant to feel as close to barefoot running as possible, which is the primary reason Merrell chose to go with such a low to the ground drop height. The average running shoe drop height sits at around just over 10 millimeters, so you should be advised that you will need to get adjusted to a shoe with such a low drop height if you don't already own a similar sized shoe.
Key Features of the Merrell All Out Crush Light
Key Features of the Merrell All Out Crush Light

Key Features of the Merrell All Out Crush Light

  • TrailProtect pad


  • Protective toe cap


  • M Select Grip outsole


  • Merrell Unifly midsole


  • M Select FRESH Proactive deodorizer


  • Vegan


  • Reflective material


  • Bottom Line
    Bottom Line

    Bottom Line

    The Merrell All Out Crush Light is a competitive neutral running style trail shoe that doesn't disappoint. The M Select outsole is aggressive and really gets the job done when it comes to grip. Combine that with a very breathable, flexible upper and you have the makings of a fantastic trail shoe. The All Out Crush Light is a great option for neutral running style runners who want an adequate amount of protection for their feet on the trail.

    These shoes are recommended highly for beginners who may be unsure which trail shoe may suit them best. The Merrell brand backs customers with quality craftsmanship that beginning trail runners may not experience from another company. The Unifly midsole provides support and comfort to only enhance the user experience. This model of shoe covers every fundamental basic necessity necessary to make it a very viable option to be a top selection when it comes to purchasing a trail running shoe.