ASICS GEL Nimbus 25 vs On Cloudmonster: Which Max Cushion Trainer Fits Your Running?

Introduction

Max cushion running shoes have moved from novelty to everyday staple, and two of the most popular options right now are the ASICS GEL Nimbus 25 and the On Cloudmonster. The Cloudmonster arrived as On’s first true max cushion shoe, built on a full-length bed of its signature CloudTec pods. The GEL Nimbus 25 is the 25th iteration of ASICS’ classic daily trainer, reworked into a beefed-up, higher-stack max cushion option with a softer ride. Both are worth their value, and both sit in the same general price territory, but they serve noticeably different kinds of running. Here is how they compare.

ASICS GEL Nimbus 25: Plush, Soft, Recovery-Focused

The GEL Nimbus 25 leans into softness. Its midsole uses ASICS FF Blast Plus Eco foam, an EVA blend that feels lightweight for how much cushioning it carries, paired with a gel unit in the heel. The result is a very soft, comfortable, cushioned ride that is best saved for recovery runs and easy days.

The upper is a super soft, stretchy knit with generous padding in the heel area, giving a plush, pillowy sensation all around the foot. The tongue is stretchy and one of the nicer touches in the design. One caution: this upper can heat up. In warm summer weather, it can get hot for everyday running, and a performance running sock helps. The heel base is also wider, which gives planted, stable landings and a traditional stability feel, even though this is not a stability shoe.

On Cloudmonster: Snappy Cruising With a Distinct Feel

The Cloudmonster is built on a full-length bed of CloudTec pods made from Helion foam, an EVA compound blended with olefin for structure and stability. The pods create a squish-and-release, contract-and-expand sensation underfoot with each stride. The foam is tuned a touch softer than earlier On shoes, but it is paired with a plastic speedboard, so the ride comes out snappy as well as cushioned.

The upper fits nicely with no excess room and nothing baggy, but it is not the softest or stretchiest material and feels a bit scratchier in the hand than the Nimbus knit. The heel is padded, though less heavily, keeping the shoe lighter for everyday use. Like other On shoes, it remains well structured with good support and a stable landing.

Midsole and Ride Feel

Comparing the two, each has its signature “gimmick.” The Cloudmonster’s massive hollow pods squish and release as you run, and its foam gives nice feedback in a bend test. The Nimbus has the gel unit in the heel, which you barely feel on most runs. It mainly shows up when you are heel striking hard, such as running downhill, absorbing a bit of extra impact. It works best for heel strikers and runners who load the back of the shoe.

On the road, the Cloudmonster is the more versatile of the two. It fits neatly into normal everyday aerobic paces and cruises comfortably for extended easy runs, including treadmill sessions. The GEL Nimbus 25 is more cushioned and soft, ideal at true recovery paces, such as the day after a hard workout or as a second run. At faster paces the Nimbus feels cumbersome because there is so much foam, and the Cloudmonster also loses some nimbleness and energy return when you try to pick it up. Neither is a racing shoe.

Upper Comfort and Fit

The ASICS upper is the softer, stretchier option with a plush heel and a stretchy tongue, while On delivers a clean, well-fitting everyday upper that is slightly coarser to the touch. If overall softness and wrap-around comfort matter most, the Nimbus has the edge; if you want a lighter everyday feel, the Cloudmonster holds its own.

Outsole and Durability

Both shoes use a similar covering of rubber on the outsole. In real use, the Cloudmonster at around 200 miles showed wear through most of the medial heel rubber pad, while the Nimbus at around 150 miles was holding up better in the same high-contact area. The forefoot rubber on both looks nearly new. The expectation is that both should comfortably reach around 400 miles, which is a reasonable target for most modern trainers, with the ASICS rubber likely lasting a bit longer.

Overall Buying Advice

The Cloudmonster is the pick for someone who wants an everyday trainer in the vein of a standard daily trainer, only a bit more exciting and more fashion forward. It cruises happily at everyday aerobic paces, but it is not a shoe for racing or competitive, structured training programs.

The GEL Nimbus 25 is the pick if you want something super comfortable for recovering from harder efforts: a fast track session one day, then a short easy run in the Nimbus the next. It is also friendlier to stronger or bigger runners who want to pick up the pace occasionally, though it still shines most at slow paces.

Conclusion

Both shoes earn their place. The On Cloudmonster is the snappier everyday cruising shoe with a distinctive pod-based ride, while the ASICS GEL Nimbus 25 is the softer, plusher recovery and easy-day option with a slightly more durable outsole. Match the shoe to the runs you actually do most, and either one should leave you very happy with the results.