Who says you can't improve on a classic?

For 20 years, the GEL-CUMULUS™ shoe model has been a favourite among its loyal fans from performance runners to beginners. But in running there is always room for improvement, which is why the ASICS Institute of Sport Science (ISS) has improved the cushioning and doubled the performance of the fit in areas of the new GEL-CUMULUS™ 21, making running further feel more comfortable.

Designed to cushion the feet over long distances, the GEL-CUMULUS™ 21 shoe combines FLYTEFOAM ™ Propel technology and rear and forefoot GEL™ technology for extra bounce and premium shock absorption to run further. Extra foam in the ankle wrap provides a softer, more cushioned feel.

The development of every ASICS shoe, including its legend models, sees them go through an intensive testing and development cycle in which the new shoe will only be released if the data proves it outperforms the predecessor. For the GEL-CUMULUS™ 21 model the improvement goal was focused on improving the fit and cushioning. They did this by introducing two new features to the GEL-CUMULUS™ 21 shoe model:

  1. The improved discrete eyelet construction for an even better fit with significant improvement on the lateral side and increased performance on the medial side.

2. The combination of FLYTEFOAM™ midsole, softer FLYTEFOAM™ Propel, and Rearfoot GEL™ technology has improved the ride comfort giving runners increased cushioning.

The GEL-CUMULUS™ 21 model will now available from ASICS retail and online stores as well as specialist running outlets.

To find out more about the product, please see GEL-CUMULUS™ 21

The GEL-CUMULUS™ 21 shoe’s proprietary technologies are:

Vis Rearfoot GEL™ technology

Visible rearfoot GEL™ technology found under the heel that reduces shock when the foot contacts the ground.

FLYTEFOAM™ Propel technology

Lightweight midsole foam that is soft and bouncy.

FLYTEFOAM™ technology

Lighter and more durable than traditional midsole material. This is ASICS’ lightest midsole material.

Forefoot twist GEL™ technology

Softer material in the forefoot that works with GUIDANCE LINE™

midsole technology to position the foot for a more natural stride.

I.G.S™ (Impact Guidance System)

Design philosophy that links components such as GEL™ technology cushioning and GUIDANCE LINE™ technology together to enhance the foot’s natural gait from footstrike to toe-off.

SpEVA™ 45 lasting

2 mm of soft, durable cushioning stitched just under the sockliner for enhanced comfort.

ASICS Institute of Sport Science testing – Evaluation of static fit-test scores revealed doubled the performance of the fit on the lateral side and significant improvement in fit on the medial side.