Who should buy the Asics Gel Flux 5

The Gel Flux 5 is an Asics running shoe that has a minimalist construction. This shoe is ideal for runners like you, if:

  • You want a road running shoe that is ready to handle long distances 
  • You prefer a cushioned running shoe that can easily support heel-strike patterns

Asics Gel Flux 5 heel cup

Updates to the Asics Gel Flux 5

  • Overlays are now printed instead of stitched, for less bulk
  • Full-length midsole foam that is supported by Gel cushioning units for shock attenuation
  • An outsole formed by a combination of blown and carbon rubber compounds for protection and surface traction

Asics Gel Flux 5 gel flux 5

Energized toe-offs with the Gel Flux 5

The forefoot section of the Asics Gel Flux 5 features the DuraSponge, which is made of blown rubber. This material is durable and capable of providing traction, but it also offers some cushioning because it has a soft structure.

Asics Gel Flux 5 forefoot outsole

Same as with the popular Asics Gel Cumulus 20, the Gel Flux 5's outsole heel section is covered with the AHAR or the Asics High Abrasion Rubber. It’s a durable compound that’s meant to resist wear and tear while also delivering surface grip.

Asics Gel Flux 5 AHAR heel

Flex grooves allow the runner to bend the toe joints efficiently, thus energizing and enabling the toe-off phase of the gait cycle.

Kinetic energy from SpEVA

SpEVA is a proprietary foam that’s designed to provide responsive cushioning. It transfers kinetic energy to the foot and leg of the wearer, thereby energizing each step.

The heel and forefoot portions of the Asics Gel Flux 5’s platform make use of the Gel Cushioning System which is composed of a silicon-based material. Its job is to absorb the impact shock generated by the foot-strike, thus easing the landings.

Asics Gel Flux 5 gel heel

A vertical groove called Guidance Line leads the foot towards a structurally and mechanically smooth gait transition.

Asics Gel Flux 5 gl groove

The Guidance Trusstic System is a plastic add-on that bolsters the structural integrity of the midfoot section. It aims to support the footpad and ease the tension on the muscles and tendons.

Asics Gel Flux 5 trusstic

An ethylene-vinyl acetate (EVA) sock liner is placed right above the main cushioning foam. This extra layer is intended to keep the foot rested on a soft platform. It can be removed or replaced with a custom insert.

Soft and flexible coverage from Gel Flux 5

Open Mesh is a material that is soft and flexible. It accommodates the natural shape and motion of the foot. It is also breathable as it has many ventilation pores on its surface.

Asics Gel Flux 5 open mesh

Printed overlays strengthen the sides of the upper unit. These thin additions are also designed to hug the foot and keep it in place.

Asics Gel Flux 5 printed overlays

A traditional lacing system graces the Asics Gel Flux 5. It makes use of semi-flat shoestrings, non-prominent round eyelets, and printed reinforcements. These elements work together to ensure a snug, secure yet customizable fit.

Asics Gel Flux 5 laces

The padded tongue and collar bring cushioning to the ankles, heel, and instep, and they prevent in-shoe wobbling.

Asics Gel Flux 5 collar

Facts / Specs

Terrain: Road
Weight: Men 318g / Women 258g
Drop: 10mm
Arch support: Neutral
Forefoot height: Men 13mm / Women 12mm
Heel height: Men 23mm / Women 22mm
Collection: Asics Gel

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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.