Editor rating:
7/10 on
User's rating:


  • Vertical Flex Groove for maximum energy transfer efficiency


  • Large toe box could be uncomfortable for some


I would recommend the Asics Flux to beginner runners and mild overpronators.
Gel Flux
9 oz. (255 gr.)
100 US$
Overpronators, Beginner Runners

Asics Gel Flux First Impression:

The Blue/Pink/White with pops of neon green color palette was a treat to my eye.

The color palette is extremely bright and fun. The shoe is relatively lightweight, weighing at only nine ounces for a stability shoe.

The Flux model joins Asics’ Guidance Line, which already includes the fan-favorite Nimbus and Cumulus models.

Asics Gel Flux Upper:

Upon trying the GEL-Flux on, I noticed the simple feel of the model. Unlike the “big brothers” in the Guidance Line, the Nimbus and Cumulus, the pair offers little cushioning to the upper. The tongue and collar are both plush but comfortable,crafting a nice balance within the upper. I liked feel of the stiff heel as it provided me with support, but the lightweight mesh composition of the upper gave ultimate flexibility.

The mesh is extremely breathable, and is paired with synthetic overlays that proved to be very resistant in running in wintery slush. As expected with breathable mesh, the shoes became soaked easily in inclement weather.

The Flux, however, dried out quickly. The toe box is wider than I am accustomed to, but it wasn’t loose enough to prove uncomfortable. I would like to see it be snugger in the toe box in future models.

Asics Gel Flux Sole Unit:

The Asics Flux contains Asics’ Award-winning forefoot and rear foot GEL cushioning.Though the upper was minimally structured, the Flux’s cushioning proved to offer support and shock absorption. This allowed my feet to move more fluidly and transition easier through the gait cycle.

The guidance of the Flux provided a smooth transition, and made me feel like I had a more efficient stride. A vertical flex groove along the midfoot significantly opens up your stride for maximum efficiency in each energy shift.

The shoe’s trussic system additionally enhances gait efficiency, and provided structural integrity and support during my run.

These features are prevalent throughout the Guidance line, offering offer medial stability and structural support.

As a runner with extremely flat feet, I noticed the light underfoot cushioning. The molded foam insole gave structure to my almost non-existent arch, and was extremely comfortable without being too plush.

The outsole is composed of an abrasion-resistant rubber composition which allows for reliable traction. Asics takes this feature a step further and places this material strategically along the outsole in high impact areas in order to provide longer lasting durability.

This proved to be quite helpful when running in a variety of terrains. After taking these through rocky wintery paths of Upstate New York and down to the hard hitting concrete running paths of North Carolina, both the cushion and support proved reliable.

Asics Gel Flux Sole Unit:

I was extremely impressed with the ASICS Flux model. Although seen as the “budget friendly” version of the ASICS Guidance Line in comparison to the Nimbus and Cumulus, I noticed only slight differences.

The Flux proved itself in a variety of climates; from the rocky terrain of upstate New York trails to the smooth North Carolina concrete. It gave a clean grip, and didn’t wear easily.

I liked that the upper was both breathable and lightweight, but gave slight structure with the synthetic overlays.
The fabric lining was breathable, and dried quickly as well. Although the roomier toe box left a little to be desired, overall I was impressed with its structure and lightweight technologies.

I would recommend this model for beginner runners and mild overpronators, as the more luxury technologies of the Flux’s “big brothers” would be needed for those who require more structure.

We thank the nice people at Asics for sending us a pair of Gel Flux to test. This did not influence the outcome of the review, written after running more than 50 miles in them.

Asics Gel Flux Price Comparison

Sorry - Product not found. Please try RunningWarehouse.Com to check in their assortment.
This page contains affiliate links. As an Amazon Associate I earn from qualifying purchases.

Similar shoes to Asics Gel Flux

ASICS GT 2000 12 Review

The ASICS GT 2000 12 is a stability trainer that is both durable and versatile ... (Read expert review)

ASICS Gel Kayano 30 Review

The ASICS Kayano 30 is a top-tier stability trainer. Drawing inspiration from ... (Read expert review)

ASICS GT 1000 12 Review

The GT-1000 is a stability trainer that doesn’t break the bank. It provides ... (Read expert review)

ASICS Novablast 4 Review

The ASICS Novablast 4 is a firm-riding daily trainer which is more suited to ... (Read expert review)

ASICS S4 Review

The ASICS S4 is a carbon racer designed specifically for the runner who is ... (Read expert review)

Saucony Omni 22 Review

The Saucony Omni 22 is a moderate stability shoe built for durability with ... (Read expert review)