ASICS Gel Cumulus 26 review

After testing the Cumulus 26, we think that it is a stellar choice for:

• Longtime fans of the Cumulus series seeking a touch more stability in the 26th iteration.
• New runners looking for a single, lightweight shoe capable of handling various paces and distances.
• Those in search of a slightly rockered daily trainer at a competitive price.

We think the Cumulus 26 falls short of being the ultimate choice for those seeking a maximalist, ultra-cushioned running experience—especially for forefoot strikers. For a similar value, we recommend the best-seller ASICS Novablast 4, or the premium-priced ASICS Nimbus 26 if you're after the ultimate comfort.

We also believe the updates in terms of stability are not enough to make the Cumulus 26 a solid alternative for those in real need of support. For those runners, we suggest the Hoka Arahi 7 or sticking with the ASICS brand and opting for the GT 2000 12, both of which offer superior stability in a daily trainer package.

In our view, the heel of the Cumulus 26 closely resembles those of maximalist shoes, with our digital callipers recording a stack height of 36.8mm in the rearfoot.

We hope ASICS doesn't increase the Cumulus beyond this point in the future, as it could compromise the agility and lightweight feel of this daily trainer. Right now, it's right on the edge of being too bulky!

The forefoot measured 28.6 mm in our lab tests, indicating that even runners who strike with their forefoot will find ample cushioning to support those weekend long runs.

In terms of drop, ASICS has consistently designed the Cumulus series with a universal 8-mm drop, and our precise measurements confirmed an 8.2 mm drop, effectively validating the shoe's design.

In fact, we're accustomed to finding much larger discrepancies in other models, so a mere 0.2-mm difference is definitely praiseworthy and speaks highly of their manufacturing processes.

Beneath the insole, the FF Blast+ (EVA+OBC) midsole is paired with a piece of PureGEL. This evolved form of the traditional GEL technology that ASICS has long employed features a compact piece strategically placed above the foam in the rearfoot area.

This design is particularly beneficial for ensuring softer landings, making it an excellent choice for heel strikers who prioritise comfort above all else.

Furthermore, the midsole strikes a balance with a softness rating of 18.6 HA, though it stops short of being overly plush. The most accurate description from us would be... moderately plush!

EVA foams generally underperform in cold temperatures, which is a key reason why Olefin co-polymers are blended into the material in the FF Blast+ foam.

This combination prevents the foam from becoming like a brick in freezing conditions. In our 20-minute freezer challenge, FF Blast+ maintained a satisfactory performance of 24.2%.

The Ortholite X-30 insole measures 5.1mm, which is slightly above average in thickness, yet its presence is subtle. And we found it delivers outstanding immediate comfort right from the first step.

Now it's time to examine the upper, a critical aspect of every running shoe. Our initial measurement focused on the widest part of the toebox, which came in at 97.1 mm. This is slightly narrower than last year's model, though the difference is minimal.

We can confidently state that the Cumulus 26 fits most runners well. However, those with particularly narrow or wide feet might consider the Wide size (if available in your region) or explore broader models like the New Balance FuelCell Rebel v4.

We always take two measurements in the toebox to provide a clearer view of the fit.

The second measurement, at 76.8 mm, also shows that it's a bit narrower than most daily trainers. Therefore, it's perfect for those who prefer a snug and secure fit.

The Cumulus remains a neutral daily trainer similar to previous versions. However, we found in our runs that it does include some minor improvements in stability. Let's take a look!

In terms of support, a notable update from the previous Cumulus is the torsional rigidity of the shoe. It definitely feels more rigid underfoot, and our manual assessment confirms this improvement, upgrading its rating from 3/5 to 4/5 in this version.

The change that truly impressed us is the increased stiffness of the heel counter. Previously rated at 3/5, similar to most daily trainers, ASICS has enhanced the stability significantly, prompting us to award it a 5/5.

This adjustment is beneficial for those requiring mild stability, though we believe it also may be excessive and reduce heel comfort. This could be a deal-breaker for those who do not need that extra support.

Shifting our focus to the midsole, we again noted a very wide platform in the forefoot, measuring exactly 120.0 mm. This provides a broad landing area for enhanced stability.

The heel design also follows the same spacious concept, and we measured it precisely at 100.0 mm.

This is significant because ASICS is targeting heel strikers with this shoe, incorporating technologies like PureGEL in this area alongside increased stiffness.

In our 90-degree bend test, the stiffness of the Cumulus 26 registered at 24.4N, which is typical for a daily trainer. This level of stiffness ensures ample flexibility, making the shoe comfortable and not too stiff during slower runs.

To assess performance in cold temperatures, we placed the shoe back in the freezer for another 20 minutes and then retested its stiffness with our force gauge.

We discovered that it became 38.1% stiffer, an average result that aligns with our expectations for FF Blast+ foam.

We always found the Cumulus as a lightweight and more affordable alternative to the Nimbus series, and this model takes that a step further. At just 9.1 oz or 259g, it's 4% lighter than its predecessor.

Although the weight reduction is subtle, we consider any improvement in lightness a bonus, especially when it enhances the running experience.

ASICS has revamped the upper from the Cumulus 25 to the 26 edition, and it has had noticeable effects. While the previous model had great breathability, our testing rated the latest version a modest 3/5, which we found slightly disappointing during our smoke test.

We were curious about the cause of this change. Initially, we inspected the upper under a light to identify the thinnest areas and any ventilation openings. There was minimal light penetration through the dense upper, confirming that ASICS likely did not prioritise maximum ventilation in this design at all.

Intrigued, we used a microscope to closely examine the engineered mesh.

It's clear that this shoe is not ideal for hot summer runs.

Lastly, we conducted a manual examination of the upper.

We discovered that airflow is mostly blocked by a layer of fabric beneath the mesh, with the tongue serving as the primary air entry point. We also noted that the shoe has sufficient padding in the heel and midfoot, though nothing spectacular.

Just like in life, every downside has an upside. The Cumulus 26 might not offer ideal ventilation, but this feature makes it excellent for winter runs and suggests it might have better durability than most running shoes.

We were thrilled with the performance in this tests, as the thick engineered mesh proved exceptionally resistant during our Dremel challenge—earning a stellar 4 out of 5. This durability maybe compensates the lack of ventilation for some.

But hold on, it only gets better for the Cumulus 26 in our Dremel battle.

In our second evaluation, we discovered that the heel padding performed exceptionally well against the sandpaper, achieving an impressive 5/5. This result ensures long-lasting durability in an area typically susceptible to wear and tear. Fantastic!

Moving to the outsole, there's quite a bit to discuss here. Instead of the typical rubber, ASICS has opted for a rubberized EVA called FLUIDRIDE, which is a surprise to us. Simply put—imagine a tougher foam or a softer rubber. It's a blend designed to find a balance between both cushioning and durability, which is why we got a super-low 54.9 HC result in our test.

This approach differs from the norm, though brands like Hoka have previously adopted this strategy with success. However, while we experienced good grip on roads, we think that this outsole it's not the best for everything else like easy trails or gravel roads in terms of durability and traction.

When we encountered the surprisingly low hardness result of the outsole, our curiosity led us to test the rubberized EVA with the Dremel, and it confirmed our expectations.

After completing the test, we observed a significant 2.4-mm indentation—a considerable amount that might seem alarming compared to other road daily trainers.

However, the Cumulus 26 is not your average daily trainer. Unlike typical models that include about 3 mm of rubber, this shoe boasts 6.0 mm of the white, rubberized EVA we analysed in our previous tests.

That's why, despite the poor results in our previous durability test, we're not really concerned. While the lifespan of this shoe may not match those with extremely hard rubbers and thick outsoles, it should still provide sufficient durability to handle decent mileage.

Unfortunately, we discovered that ASICS chose not to include reflective elements in the new Cumulus.

We've discovered that one of the improvements in the Cumulus from previous versions is its reduced weight. However, as with everything in life, there are trade-offs. The most significant one here is the tongue padding, which is about half as thick as in version 25.

Is 3.5 mm enough? For us, the trade-off feels right. Yet for those who prefer shoes with plush uppers, we think it probably isn't, and they might find it wise to consider a shoe like the Brooks Ghost Max, which has an 8.5-mm thick tongue.

We discovered that the tongue is semi-gusseted, or partially fixed to the sides—a wonderful feature in a £140 shoe that we highly value, especially during faster-paced runs.

ASICS has incorporated finger-loop heel tabs in most of its recent models—and in the Cumulus 25—but this update departs from this trend.

The Ortholite X-30 outsole is removable, allowing you to clean it or replace it with a different footbed as needed.