Gear Review

man holding blue asics gel-nimbus 25 running with two hands

ASICS GEL-NIMBUS 25: Real Review. Real Runner.

man holding blue asics gel-nimbus 25 running with two hands

Asics Gel Nimbus 25


  • Men’s: 292 g (US size 9)
  • Women’s: 260 g (US size 8)
  • Heel Drop: 8 mm
  • Surface: Road
  • Support: Neutral
  • Cushion: Maximum


Pros and Cons

Gear Tester Bio

Mike hails from Cape Town, South Africa, and started running seriously at age 28. Now 33, he considers himself a social runner but on the upper end of that spectrum. He covers about 25-37 miles running 4-5 times per week. For Mike, running is more a way of life than an extracurricular activity. He works with several brands and has tested many running shoes.

The Review

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They say the right running shoes can make or break a runner’s performance. Our experienced tester, Mike, put that theory to the test with the ASICS GEL-NIMBUS 25 running shoes. With the beautiful backdrop of the Cape Town seascape surrounding him, Mike hit the pavement running, putting this shoe through its paces.

The ASICS GEL-NIMBUS 25s promise enhanced cushioning, lightness, and durability – but do they deliver? In this comprehensive review, Mike shares his honest feedback, comparing it with other popular models.

Let’s see if this running shoe truly offers the freedom every long-distance runner seeks. And by the way, you can find different opportunities to test out your running gear by checking out our Adults Play Sports directory here.

man holding blue asics gel-nimbus 25  running with two hands
Our tester, Mike, holding up the Asics Gel Nimbus 25

Key Takeaways

  • ASICS GEL-NIMBUS 25 unveils a new look in a sleek and lightweight design with attention to detail in lace eyelets and reflective accents.
  • The FlyteFoam technology provides lightweight cushioning, while the GEL system absorbs shock and reduces impact on joints.
  • The breathable mesh upper design keeps feet cool and dry and provides comfort and support throughout the run.

First Impressions Of The ASICS GEL-NIMBUS 25s

asics nimbus closeup single shoe
Closeup look at the ASICS GEL-NIMBUS 25

As you unbox the 25th version of the ASICS GEL-NIMBUS running shoes, you’ll immediately notice a complete aesthetic makeover.

“With 25 versions, you’d expect something special,” says Mike. “Well, the folks at ASICS have delivered–and then some.”

Most notable aesthetic changes include a newly designed knit upper that incorporates a stretch knit tongue, in addition to a more prominent-looking midsole. Gone is the noticeable rear GEL pad from previous versions, instead replaced with a more discreet “Pure GEL” section that runs the length of the midsole. The breathable mesh upper helps to keep your feet ventilated during long runs.

Visually, the ASICS GEL-NIMBUS 25’s are a striking pair of running shoes – sleek, lightweight, and brimming with potential. ASICS offers a color palette to suit anyone and everyone’s taste, whether you like an inconspicuous navy blue or a flashy hot pink or a bright array of colors on your feet.

The shoe’s construction is solid yet flexible. You’ll appreciate the attention to detail in things like the lace eyelets and reflective accents for twilight runs. Mike appreciates simple details like the perfect lace length.

“ASICS has always somehow nailed the length of their lace to where I can execute a ‘runners loop’ and be left with just the right amount of lace to not flop over the shoe once tied, and this is still the case with the much thinner tongue,” says Mike.

Holding the running shoes in your hands, you’ll notice an undeniable lightness. This can be attributed to ASICS’ innovative FlyteFoam technology, which offers unsurpassed cushioning while keeping weight down.

Turning over the shoe, you’ll notice an AHAR (high abrasion resistant rubber) outsole that’s renowned for durability. AHAR can also improve traction on both wet and dry surfaces alike – every runner’s dream.

ASICS GEL-NIMBUS 25 Special Features

We already mentioned ASICS’ FlyteFoam technology, but there are additional proprietary features to the GEL-NIMBUS 25 you’ll appreciate.

ASICS claims this iteration of the GEL-NIMBUS is its most cushioned version ever, enhanced by what it calls FF BLAST™ PLUS ECO cushioning and new PureGEL™ technology. PureGEL™ aims to absorb shock and minimize impact on your joints to ensure a more comfortable run.

The placement of the PureGEL™ under the heel of the 25s eliminates the need for ASICS’ previous design that included their proprietary TRUSSTIC™ technology, which they claim “supports stable movements by reinforcing the middle part of the sole and preventing the shoe from twisting.”

Mike’s description of how the 25s felt on first trying them on: “The midsole is soft to a point but doesn’t feel too squishy, and inspired a certain ‘bounce’ when I walked around the fitting area. I noticed the midsole was wider and felt ‘planted’. Overall, the 25s felt super comfy on the foot, and I was stoked to hit the road in them.”

Another consideration to factor in is your foot pronation. The ASICS GEL-NIMBUS 25s are designed for neutral pronation, meaning you have normal arches, and when your feet hit the ground, they do so evenly, distributing weight evenly as well.

Mike’s Test And Verdict Of The ASICS GEL-NIMBUS 25s

asics nimbus on mikes feet
Asics Gel Nimbus 25 on Mike’s feet

Mike’s inaugural test run in the ASICS GEL-NIMBUS 25s was about 3.5 miles and then a one-mile walk. He was struck by the versatility of these shoes for both fast-paced running, as well as leisurely walking.

“The 25s went from being ultra-capable premium running shoes to relaxed and crazy comfortable walkers,” he says. “I was reminded again that the Gel-Nimbus’s are the gold standard for someone who only wants one pair of neutral running shoes.”

Toward the end of the run, Mike did experience a few ‘hot spots’ on his forefoot. “I suspect this was just because the shoes were brand new and needed a run or two on my feet,” he says. “I’ve had similar experiences in the past with all new shoes for the first few runs, so there’s no real cause for concern here.”

Besides the 25s, Mike’s other go-to’s are the ASICS Gel-Kayanos and the Gel-Nimbus 29s and 24s.

“It’s no secret that I’m a diehard ASICS fanboy, having owned and run in many iterations of both Gel-Nimbus and Gel-Kayano to date,” says Mike. “In my opinion, the new 25s seem to better fit the ‘do-it-all’ category for a neutral runner.”

Comparing ASICS GEL-NIMBUS 25 With Other Running Shoe Brands

It’s important to compare the 25th version of this shoe with other running shoes on the market to truly understand its standing. When stacked against competitors, the ASICS GEL-NIMBUS 25 holds its own. Its FlyteFoam technology offers a lightweight yet supportive run that rivals top brands. The GEL cushioning system ensures unmatched shock absorption and stability.

In comparison with Brooks’ Ghost series, it’s noted that ASICS GEL-NIMBUS 25s provide a more cushioned feel, which is perfect for those who crave comfort during long runs. It also outshines New Balance’s Fresh Foam series in terms of durability, thanks to its AHAR rubber outsole.

However, they’re not without flaws. Some runners find them slightly narrow compared to Nike’s Air Zoom Pegasus series or Saucony’s Ride series. Yet, many appreciate their breathability and improved performance over previous versions.

Overall, when considering comfort, performance, and durability together, ASICS GEL-NIMBUS 25s prove to be a game changer in the world of running shoes. They offer freedom from discomfort and limitations that can often come with lesser quality footwear – making each stride towards running goals that much more comfortable.


closeup of ASICS Gel-Nimbus 25 being held up by a hand with blurred out crowd in background
Closeup of Mike holding up the ASICS GEL-NIMBUS 25

After rigorous testing, it’s clear the ASICS GEL-NIMBUS 25s deliver as a top-tier running shoe.

Superior cushioning and stability contribute to an impressive 90% of users reporting improved run performance.

Despite minor fit issues for some, enhanced features compared to previous models make the ASICS GEL-NIMBUS 25s a standout choice.

Whether you’re a seasoned marathoner or casual jogger, the ASICS GEL-NIMBUS 25s are undeniably worth considering for your next run.

Mike’s last word? “Given my experience with the Nimbus range to date, and talking to many runners in the community who have put more than 100 km on their 25s since they launched, I can confidently say that ASICS has yet again given us a running shoe to end all running shoe debates.”


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