Good to know

  • The Asics Gel Cumulus 20 LE, a road running shoe, is crafted specifically for those who have neutral foot motion. In this version, an additional layer of foam under the sock liner is integrated. This material is described to be soft and bouncy.
  • Utilized in the upper section is the new stretchy mesh. The primary purpose of which is to provide breathability.
  • The re-configured rubber outsole is utilized in the shoe. The Trusstic system is removed to create a smoother heel-to-toe transition.
  • To give the balance of responsiveness and cushioning, a layer of a bouncier EVA foam was added on the Flytefoam midsole material.

The Asics Gel Cumulus 20 LE uses the standard running shoe measurements. When it comes to the width, D - Medium and 2E - Wide are available for the men's version while B - Medium is for the women's version. The wider toe box allows the foot to accommodate medium and slightly wide-footed runners.  

The Asics High Abrasion Rubber or (AHAR) is integrated into the outsole of the Asics Gel Cumulus 20 LE. The AHAR offers durability to high wear areas.

The heel section is made of carbon rubber that aims to deliver exceptional durability while enhancing cushioning.

Along with the carbon rubber is the DuraSponge outsole. This material lies in the forefoot area, which is made out of a blown AHAR compound. The purpose of which is to provide flexibility and responsive cushioning.

Featured in the midsole of the shoe is the FlyteFoam. Organic fibers are embedded into the foam to provide lightweight resiliency.

Along with the FlyteFoam is the Flytefoam Propel, which gives added responsiveness. This foam is described to be softer and bouncier that maintains the comfort level during the running session.

Utilized in crafting the shoe are the Forefoot and Rearfoot Gel cushioning system. These features of the Gel Cumulus 20 LE use a silicone-based gel that is responsible for shock absorption during the impact phase.

The Guidance Line is integrated into the running shoe. This feature is described to be a flex groove which vertically runs from the forefoot to the heel section. This is essential in improving gait efficiency.

Along with the Guidance Line is the Impact Guidance System or (IGS). This technology is designed to create a smoother and more balanced heel-to-toe transition.

The Asics Gel Cumulus 20 LE utilizes the Gender Specific Cushioning. This material is an injected top layer of Solyte cushioning that provides additional comfort to the foot during the running session.

Integrated into the upper area is the engineered mesh. This material is significant in providing lightweight breathability. It also offers a smooth in-shoe feel and an adaptive fit.

Sockless wear is encouraged by the Seamless Upper Construction. This is essential in allowing an irritation-free running experience.

With the utilization of the ComforDry Sockliner, moisture and odor are reduced. This anti-bacterial material provides additional cushioning as well.

In the heel collar, a two-layer memory foam lining called the Personal Heel Fit (PHF) is used. This component of the footwear aims to provide a more individualized fit.

The Strobel Last is integrated into the shoe. It is stitched to the SpEVA 45 Foam to deliver a softer underfoot feel and improved cushioning.


How Asics Gel Cumulus 20 LE ranks compared to all other shoes
Bottom 40% road running shoes
All road running shoes
Bottom 44% Asics running shoes
All Asics running shoes
Bottom 40% neutral running shoes
All neutral running shoes


The current trend of Asics Gel Cumulus 20 LE.
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Jens Jakob Andersen
Jens Jakob Andersen

Jens Jakob is a fan of short distances with a 5K PR at 15:58 minutes. Based on 35 million race results, he's among the fastest 0.2% runners. Jens Jakob previously owned a running store, when he was also a competitive runner. His work is regularly featured in The New York Times, Washington Post, BBC and the likes as well as peer-reviewed journals. Finally, he has been a guest on +30 podcasts on running.