Asics Cumulus 24 vs Nimbus 24: Two Cushioned Daily Trainers, Two Very Different Rides

Introduction

The Asics Cumulus 24 and Nimbus 24 are the two cloud-like daily trainers Asics refreshes every year, and this generation they are more interesting to compare than usual. The Cumulus 24 receives a midsole change that shifts it from the traditionally firm, uneventful ride of past versions to something noticeably softer and bouncier. The Nimbus 24 keeps doing what it has always done, but with an even softer, more responsive foam underfoot.

Both are neutral trainers aimed at easy miles and daily use, but they do not feel like the same shoe on the foot. One demands a bit more from you, the other does more of the work for you. Understanding that difference is the key to choosing between them.

How We Evaluated Them

We looked at both shoes across the areas that matter most for a daily trainer: fit, ride, and how stable each platform feels in motion. We also paid attention to how each shoe handled different paces, from genuinely easy running to light uptempo work, since that is where these two siblings start to separate.

Cumulus 24: Fit and Upper

The Cumulus 24 upper is a classic Asics engineered mesh with 3D Space Construction shaping the fit. It is a forgiving fit throughout, with a relatively rigid but well-padded heel counter, a normal-width midfoot, and a forefoot that runs normal to maybe slightly wide. This generation feels more premium than past Cumulus versions: plush padding wraps from the heel all the way around the inlet of the shoe, giving it a cozy, hugging sensation you usually expect from a more expensive model. The tongue is gusseted and, unlike the Nimbus, fairly traditional and non-stretchy.

Sizing is straightforward: the Cumulus 24 runs true to size. Available weights are 10.1 oz (286 g) for men and 8.8 oz (250 g) for women. The drop is 8 mm in both genders, with slightly different stack heights: 23/15 mm for women and 24/16 mm for men.

Cumulus 24: Ride and Stability

This is where the shoe changes character. The midsole now uses FlyteFoam Blast, the same foam family found in the Novablast, with a firmer EVA rim around the heel similar to the Nimbus 24. The result is a much softer ride than previous Cumulus versions, with a pleasant bounce that rolls you forward. It is genuinely soft underfoot, and the initial step-in feel is excellent, though it does not run quite as soft as it feels standing in it.

The trade-off is flexibility and stability demand. Despite the stack height, the forefoot is surprisingly flexible, and the softer foam gives more in every direction. If you like the Novablast but found it too unstable, the Cumulus 24 is a compelling alternative: the wider platform and EVA heel rim add just enough structure to make it more approachable, while staying firmly a neutral shoe.

That said, this is not a shoe that does all the stabilizing for you. Some runners needed a few runs to adjust, with sore calves and quads on early efforts before things settled. If your foot relies on the shoe for guidance, the more flexible platform and softer foam will ask more of your intrinsic foot muscles. Heel scuffing also showed up more quickly on this pair than on its plusher sibling, so expect a slightly firmer landing if your gait leans rearfoot-heavy.

Nimbus 24: Fit and Upper

The Nimbus 24 shares the Cumulus family look but behaves differently on the foot. The forefoot feels more stretchy and accommodating, partly thanks to a notably stretchy tongue, and the padding spans the whole inlet for a plush, secure wrap. Runners with narrower or less voluminous feet can even consider going a half size down, since the upper expands a bit, though most people will do fine staying true to size.

Nimbus 24: Ride and Stability

The Nimbus 24 uses FlyteFoam Blast Plus, a softer and bouncier evolution of the Cumulus foam, with roughly two millimeters more stack and a 10 mm drop. It also carries a subtle wedge and a degree of encapsulation through the midfoot that, without making it a stability shoe, settles the platform in a way the Cumulus does not. In practice, that means less work for your foot: the forefoot is a bit more rigid, the midfoot feels more contained, and the shoe felt comfortable on long efforts much faster, including a 20-plus mile run with no adjustment period.

It is the more responsive of the two. There is more bounce and more forefoot rigidity, which makes light uptempo running feel natural in a way the very flexible Cumulus does not. If you want one cushioned shoe that can cover easy miles, long runs, and the occasional faster session, the Nimbus is the more versatile ride. The compromise is that it is the plusher, more cushioned option of the pair, and runners who prefer a firmer, more traditional feel may find it a lot of shoe.

Which One Should You Buy?

Choose the Cumulus 24 if you want a softer take on a classic neutral daily trainer, especially if the Novablast was appealing but too unstable for you. It is true to size, reasonably priced at $130, and releases on May 1. Just be ready for a flexible, soft platform that asks a little more from your feet during the first few runs.

Choose the Nimbus 24 if cushioned comfort with a touch more bounce and an easier, more contained ride matters most. It settles the midfoot better, handles uptempo paces more gracefully, and felt long-run ready almost immediately. If your foot prefers more structure under a soft foam, it is the safer pick of the two.

Conclusion

The Cumulus 24 is the more exciting update: FlyteFoam Blast transforms a traditionally boring trainer into a soft, bouncy ride that finally justifies its place in the lineup. The Nimbus 24 remains the more refined, more stable, and more responsive cushioned option, better suited to long miles and varied paces out of the box. Soft and flexible versus plush and contained is the simplest way to frame the choice, and both are strong daily trainers once matched to the right foot.