Our verdict
- Our top pick in best Merrell trail running shoes
- Our top pick in best Merrell running shoes
Pros
- Upper crafted entirely from recycled materials
- Ideal for beginners
- Versatile for both hiking and walking
- Superb Vibram outsole with effective Traction Lugs
- Attractive pricing for its features
- Integrated rock plate for underfoot protection
- Secure heel lockdown
- Really cushioned
Cons
- Only suited for mild to moderate trails
- Needs a reduction in weight
- Not suited for fast paces
Audience verdict
Comparison
The most similar running shoes compared
+ + Add a shoe | |||||
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Audience score | 85 Good! | 84 Good! | 86 Good! | 90 Great! | |
Price | $125 | $130 | $130 | $140 | |
Trail terrain | Moderate | Moderate | Moderate | Moderate | |
Arch support | Neutral | Neutral | Neutral | Neutral | |
Weight lab Weight brand | 10.8 oz / 305g 10.4 oz / 295g | 9.1 oz / 258g 8.7 oz / 247g | 11.3 oz / 319g 10.5 oz / 298g | 10.3 oz / 291g 10.3 oz / 291g | |
Drop lab Drop brand | 9.9 mm 8.0 mm | 7.1 mm 5.0 mm | 9.2 mm 8.0 mm | 8.7 mm 8.3 mm | |
Strike pattern | HeelMid/forefoot | Mid/forefoot | HeelMid/forefoot | HeelMid/forefoot | |
Midsole softness | Balanced | Balanced | Soft | Balanced | |
Difference in midsole softness in cold | Small | Small | Big | Small | |
Plate | Rock plate | ✗ | Rock plate | ✗ | |
Toebox durability | Decent | Decent | Very bad | - | |
Heel padding durability | Decent | Decent | Bad | - | |
Outsole durability | Good | Good | - | - | |
Breathability | Moderate | Moderate | Moderate | Moderate | |
Toebox width at the widest part | Medium | Medium | Medium | Medium | |
Toebox width at the big toe | Medium | Medium | Medium | Medium | |
Stiffness | Moderate | Moderate | Moderate | Moderate | |
Difference in stiffness in cold | Small | Small | Normal | Small | |
Torsional rigidity | Stiff | Stiff | Moderate | Moderate | |
Heel counter stiffness | Flexible | Moderate | Moderate | Flexible | |
Lug depth | 3.5 mm | 3.6 mm | 3.5 mm | 3.5 mm | |
Heel stack lab Heel stack brand | 34.1 mm 29.0 mm | 29.5 mm 23.0 mm | 34.2 mm 35.5 mm | 27.2 mm 29.6 mm | |
Forefoot lab Forefoot brand | 24.2 mm 21.0 mm | 22.4 mm 18.0 mm | 25.0 mm 27.5 mm | 18.5 mm 21.3 mm | |
Widths available | NormalWide | Normal | Normal | Normal | |
Season | All seasons | All seasons | All seasons | All seasons | |
Removable insole | ✓ | ✓ | ✓ | ✓ | |
Orthotic friendly | ✓ | ✓ | ✓ | ✓ | |
Ranking | #200 Bottom 23% | #207 Bottom 21% | #178 Bottom 32% | #44 Top 17% | |
Popularity | #92 Top 35% | #120 Top 46% | #46 Top 18% | #110 Top 42% |
Who should buy
We believe the Merrell Nova 3 is an excellent choice for:
- Trail running beginners seeking a versatile, high-quality shoe suitable for both running and hiking adventures.
- Runners looking for a reasonably priced shoe featuring a Vibram outsole and eco-friendly materials.
- Anyone needing a shoe that does a great job on easy to moderate terrains.
Who should NOT buy
While the Merrell Nova 3 is a solid choice for many, it may not suit everyone's needs. For example, some runners might prefer a more flexible shoe, such as the New Balance Fresh Foam X Hierro v7.
Additionally, the Nova 3 isn't ideally suited for fast-paced running. We advise speed enthusiasts to consider other options with Vibram outsoles, like the Hoka Speedgoat 5, for a balanced option, or the Nike Ultrafly, for best-in-class energy return paired with a carbon plate.
Breathability
The Merrell Nova 3's upper is made of thick engineered mesh, leading us to believe that its breathability might not be outstanding. Yet, considering it's an all-season shoe, extreme breathability isn't always wanted, unlike with most road running shoes.
Our smoke test gave it a moderate score of 3/5 in the lab, aligning with the average for trail shoes. This seems like a wise choice for a shoe designed for both winter runs and summer hikes.
When we shone a light through the upper, we noticed small air gaps, particularly in the toebox, which is more ventilated than the medial part of the shoe.
We then examined the shoe under the microscope, one of the highlights in our lab tests for revealing intricate patterns and textures.
The mesh we observed was multi-layered, allowing some airflow but without large ventilation holes. It appears Merrell has opted for boosting durability, which we'll explore soon.
In our final check of the upper, we discovered a thoughtful touch from Merrell: holes drilled into the inner fabric placed in the forefoot and midfoot. Without these, the shoe would likely have failed in the breathability test.
Nova 3 | 3 |
Average | 3.4 |
Durability
Toebox durability
We expected a decent toebox durability from the Merrell Nova 3, and it delivered just that (3/5). While not exceptional, we were satisfied with the outcome.
It's also noteworthy that the Nova 3's mesh upper is 100% crafted from recycled materials. This isn't just greenwashing, unlike some shoes that claim to be "eco-friendly" with only 5% or 10% recycled content.
Nova 3 | 3 |
Average | 3.1 |
Heel padding durability
In our heel durability test, the Merrell Nova 3 fell short, scoring a disappointing 2 out of 5.
Although most runners might not notice significant wear and tear in this area over hundreds of miles, we had hoped for a more robust performance, especially considering the shoe's overall build and purpose.
Nova 3 | 2 |
Average | 2.9 |
Outsole hardness
Moving to the outsole, we were excited to see the Vibram logo—a name synonymous with top-quality soles.
The Merrell Nova 3 features the Vibram TC5+ rubber, which is on the softer side compared to other options. With a hardness of only 75.5 HC and equipped with Traction Lugs, it's clear that the focus is on grip.
However, this raises a question about its durability in our lab. Could this softer rubber compromise the outsole's longevity?
Nova 3 | 75.5 HC |
Average | 85.4 HC |
Outsole durability
To find out, we revved up the Dremel for the third—and final—time. After it diligently worked over the rubber, we noted a 0.8-mm indentation.
This is an average result, but for such a soft rubber, we deem it fantastic. It's quite an achievement to balance softness for grip with enough resilience to withstand wear.
Nova 3 | 0.8 mm |
Average | 0.9 mm |
Outsole thickness
Fortunately, our previous test yielded satisfactory results. This was crucial because the outsole is quite thin at just 1.5 mm.
Had it fared poorly, we would have faced significant concerns about wear and tear.
Nova 3 | 1.5 mm |
Average | 2.4 mm |
Weight
Tipping the scales at 10.8 oz (305g), the Merrell Nova 3 is heavier than it looks.
While it doesn't weigh us down too much during runs and hikes, we're keen to see if Merrell can shave off some of this bulk in the v4.
Nova 3 | 10.76 oz (305g) |
Average | 10.34 oz (293g) |
Cushioning
Heel stack
The heel of the Merrell Nova 3, measuring 34.1 mm, offers ample cushioning, making it suitable for longer distances.
By the way, the orange piece on the heel—that's the FloatPro Foam pod, specifically designed to add softer cushioning in the landing area for heel strikers.
Nova 3 | 34.1 mm |
Average | 32.2 mm |
Forefoot stack
In our lab, we measured the forefoot of the Merrell Nova 3 at 24.2 mm, which is an average thickness.
This should work well for all footstrike types. For those concerned about sharp rocks, Merrell has included a forefoot-only rock plate to address this exact issue.
Nova 3 | 24.2 mm |
Average | 24.6 mm |
Drop
This shoe features a 9.9-mm heel-to-toe drop, positioning it for heel strikers, though it's suitable for anyone.
In fact, a 10 mm drop is often considered the safest bet for daily training shoes.
Nova 3 | 9.9 mm |
Average | 7.7 mm |
Insole thickness
The insole is quite thick at 6.2 mm, contributing to the shoe's high stack height. However, it obviously offers less pronounced energy return compared to the foam.
Nova 3 | 6.2 mm |
Average | 4.7 mm |
Midsole softness
The Nova 3 midsole features FloatPro, a modified EVA-based foam that delivers a balanced ride for those who don't love overly soft or firm midsoles.
If there's one word to describe it, it's average—both in energy return and softness. The durometer reading of 24.0 HA aligns with our experience while running, reflecting this balance.
Nova 3 | 24.0 HA |
Average | 22.6 HA |
Midsole softness in cold
We tested the Nova 3's performance in extremely cold conditions by freezing it for 20 minutes.
After the freeze, we retested it and found the hardness increased to 28.1 HA.
Nova 3 | 28.1 HA |
Average | 28.2 HA |
Difference in midsole softness in cold
That's just a 17.2% difference—a nice outcome for an EVA-based midsole. This ensures that, regardless of the outside temperature, the Nova 3 will maintain a consistent feel.
Curious about how temperature affects foams? We have an informative guide to help you out.
Nova 3 | 17.2% |
Average | 26.3% |
Stability
Lateral stability test
One advantage of balanced cushioning and not using super-soft foams is that it naturally increases stability.
Combine this with the large midsole walls Merrell designed in the midfoot, creating a bathtub-like effect, and you get a pretty stable ride.
Torsional rigidity
During our initial test runs, we noticed the shoe felt stiff, similar to some shoes with carbon plates. However, this shoe lacks one, so the stiffness comes from the rock plate and dense foam.
This design contributes to the shoe's overall support, but don't expect it to be as comfortable for all-day wear as a flexible sneaker.
Nova 3 | 5 |
Average | 3.5 |
Heel counter stiffness
The heel counter is flexible and comfortable, scoring a 2/5 in our tests. This flexibility is likely because added stiffness isn't beneficial for this shoe, which isn't intended for super-fast descents or tight corners.
If that's what you need, you might want to consider a more suitable option like the Salomon Speedcross 6.
Nova 3 | 2 |
Average | 3.1 |
Midsole width in the forefoot
We measured the midsole width in the forefoot and found it in line with the average at 109.8 mm.
Going narrower could have compromised stability, while a wider measurement wouldn't be a wise choice for a shoe that's already on the heavier side.
Nova 3 | 109.8 mm |
Average | 112.1 mm |
Midsole width in the heel
Shifting our focus to the heel with our calliper, we encountered a surprisingly narrow width of only 86.1 mm.
This was a bit of a letdown for us. A wider base would have been more suitable, particularly since this shoe targets beginners and those seeking a versatile option.
Nova 3 | 86.1 mm |
Average | 89.9 mm |
Flexibility
Stiffness
The shoe proved to be incredibly stiff when we tried twisting it. To quantify this stiffness longitudinally, we conducted our standardised 90-degree bend test.
The Nova 3 delivered a result that slightly exceeded the norm at 32.0N, likely due to the presence of the rock plate.
Nova 3 | 32.0N |
Average | 28.0N |
Stiffness in cold
Like our earlier midsole softness test, we repeated the 90-degree bend test after a 20-minute freezer session. This time, it required slightly more effort from us, registering at 35.8N.
Nova 3 | 35.8N |
Average | 37.7N |
Difference in stiffness in cold
That's just an 11.9% difference—an impressive feat for a non-premium, EVA-based midsole. This consistent performance guarantees that the shoe will maintain a similar feel throughout all seasons.
Nova 3 | 11.9% |
Average | 34.8% |
Grip / Traction
One advantage of balanced cushioning and not using super-soft foams is that it naturally increases stability.
Combine this with the large midsole walls Merrell designed in the midfoot, creating a bathtub-like effect, and you get a pretty stable ride.
Lug depth
This is a beginner-friendly, multi-purpose trail running shoe. Accordingly, if Merrell designed the outsole with this in mind, the lugs would likely be of average depth.
True to our expectations, the lugs measure 3.5 mm, which is quite standard. This means they're versatile—while they may not excel in extreme conditions, they're reliable in a variety of terrains.
Nova 3 | 3.5 mm |
Average | 3.5 mm |
Size and fit
Toebox width at the widest part
With a width of 96.1 mm at the upper's widest part, this shoe might not suit those with wide feet, as it offers a snug, performance fit.
However, Merrell does provide this model in a 2E (Wide) size option for those needing more room.
Nova 3 | 96.1 mm |
Average | 98.9 mm |
Toebox width at the big toe
Luckily, the big toe area features a gentle taper, measuring a roomy 78.0 mm, resembling the dimensions of a wider shoe.
This unique design comfortably accommodates those with wider feet in the toe region.
Nova 3 | 78.0 mm |
Average | 79.1 mm |
Tongue: gusset type
Given its £130 price tag, we're truly grateful that the Nova 3 features a fully gusseted tongue—a luxury often reserved for more expensive shoes.
This addition effectively prevents debris from entering the shoe and ensures the tongue remains firmly in place, enhancing both comfort and functionality while running or hiking.
Nova 3 | Both sides (full) |
Comfort
Tongue padding
The Nova 3's tongue padding is simply overdone. At 9.1 mm thick, it might feel too restrictive for some runners, especially given the shoe's snug fit.
Trimming down 3 to 4 mm could have made the shoe lighter and arguably more comfortable.
Nova 3 | 9.1 mm |
Average | 6.5 mm |
Heel tab
At first glance, we thought the shoe had a finger-loop pull tab, but it turns out it's way too small for that—like, only a baby's finger small. So it's just a regular pull tab for us.
Nova 3 | Pull tab |
Removable insole
The insole is effortlessly removable, as it's not glued down. Plus, with the shoe's standard shape and size, finding a replacement is really easy.
Nova 3 | Yes |
Misc
Reflective elements
The Nova 3 does have a few reflective pieces, but doesn't feel enough at all.
Nova 3 | Yes |