

The ASICS Gel Nimbus sits at the top of ASICS' traditional lineup of neutral trainers. It has been a fan favourite for 27 years now. The Cumulus is what in the industry is called a "takedown" - which means a shoe with similar design inspiration and use, but with some changes that make it more affordable.
What are these differences between the two? Let's find out!
The sole of the ASICS Gel Nimbus is made of two major parts: the PureGel™ in the heel surrounded by the FF Blast™ PLUS ECO foam. For those that are Eco-conscious, FF Blast™ foam is made of 24% bio-based materials.
There was a bit of rocker technology added last year to the heel and that remains for this version. It isn’t the most pronounced rocker but it certainly does make the heel-to-toe transition smooth.
The GEL unit absorbs vibration during foot strikes. The result is a soft, cushioned sole that is ideal for running long mileage, also for heavier-set runners.
The sole of the ASICS Gel Cumulus is made of PureGel™ in the heel surrounded by the FF Blast™ PLUS foam.
The main difference in real-world running is that the Nimbus keeps being “softer” for longer, making it ideal for very long running sessions (or for heavier runners) while the Cumulus tends to become “harder” at longer distances.
The upper of the Nimbus is made of soft, stretchy engineered mesh. This helps the shoe conform to your foot while creating a plush feel all around. The tongue is gusseted and thin. It’s likely one of the best tongues out there.
The upper of the Cumulus has had the biggest change of all. While last year’s shoe was an engineered mesh, this year’s update sees smaller mesh holes and a slight bit less breathability.
The tongue also changed as last year was soft and stretchy knit while this model is now a stiffer, less stretchy mesh.
Both uppers fit true to size and are available in a variety of widths. They both have excellent lockdown and are supremely comfortable.
All said and done, which of these two shoes would I recommend?
The first big difference is the price: you pay a $20 premium for the Nimbus. I am not sure anymore that the Nimbus is so much more value over the Cumulus, but I also think that the Nimbus is priced well for its specifications and the Cumulus might be a steal.
Heavier runners, or runners which prefer softer shoes that keep their comfort over a longer mileage should be headed towards the Nimbus.
Runners that are looking for a soft shoe that has some more responsiveness and don’t mind sacrificing some of that softness should but the Cumulus.