Notable elements of the Asics Gel Quantum 90 SG

- The Asics Gel Quantum 90 SG is a product that has become a part of the global roster of neutral running shoes. It has a sporty yet simplified look and a set of color schemes that may appeal to casual shoe enthusiasts and athletes alike. The façade is the same as the original Gel Quantum 90 model, save for these changes: stitched-on midfoot panels, an asymmetrical ghillie lacing system, and lightweight heather mesh upper.

- Underfoot cushioning is the responsibility of the full-length ethylene vinyl acetate midsole. This industry-standard compound boasts responsive takeoffs and well-mitigated landings. A 10-millimeter heel height allows the weight of the body to shift forward, preparing the foot for the toe-off at all times while averting any strain on the Achilles tendon. The shock-attenuating GEL® technology shields the lateral part of the heel striker’s landing zone.

- Rubber graces the outsole unit of the Asics Gel Quantum 90 SG, covering the contact points of the forefoot and heel. Mild traction patterns exhibit a capability to dole out traction, a trait that accentuates surface control. A helping of grooves enables the natural bending of the foot.

Size and fit

The Asics Gel Quantum 90 SG was constructed to be true to size. Runners are welcome to get a pair with their typical size choices in mind. It is worth noting that to attain the most pleasant in-shoe experience, one should try on the shoe first or observe user feedback through the sellers’ comments and reviews sections.

Medium foot dimensions are welcome in this running shoe.


Durable rubber covers the contact points of the Asics Gel Quantum 90 SG’s outsole. Runners won’t have to worry about wear-and-tear because protection is afforded to areas that are prone to such occurrences. This material also doles out traction, an essential aspect of the running session.

This outsole unit of this road running shoe has squares and rectangles as the traction patterns. These non-prominent nodes aim to heighten the surface grip, thereby accommodating confidence when swerving, turning or braking.

Flex grooves are fashioned all across the outsole. These shallow trenches accommodate the natural bending capacity of the foot by allowing the entire sole unit to follow those movements.


Ethylene-vinyl acetate (EVA) is used for the midsole unit of the Asics Gel Quantum 90 SG. This compound runs the whole length of the shoe, making it able to support the entirety of the foot. It is light, flexible and able to attenuate impact shock during the landing phase.

The proprietary GEL® technology rests outside the EVA foam, encompassing the 90-degree angle that goes from the heel to its immediate lateral section. Heel strikers are most likely going to appreciate this add-on as it absorbs the landing forces, effectively smoothening the striking phase and allowing the foot to effortlessly transition towards the takeoff.

A 10-millimeter heel-to-toe drop keeps the foot at a slanting position. Such a stance alleviates the weight-bearing strain on the heel while also permitting the foot to always be geared towards the toe-off.

A lightly padded insole is placed right above the cushioning system. It adds a bit more to the softness of the underfoot experience. It can be replaced with a new one if the runner chooses to do so.


This Asics running shoe features a light heather mesh on its forefoot section. This material can welcome the natural splaying capacity of the toes because it is stretchy. Its minute breathing ports welcome environmental air into the foot chamber, thereby maintaining a cool and dry environment for the foot.

A wraparound synthetic panel serves as the overlay system. It is stitched onto the façade, reinforcing it and keeping it upright. It connects to the lacing system via discreet eyelets on the instep part, and it is through this connection that the adaptableness of the fit can be appreciated.

An asymmetrical ghillie lacing system adorns the bridge of the façade. Round but thin laces loop through the lace-holes of the side-panels, ending at the edge of the collar like any other shoe. These strings tighten or loosen to follow the fit preferences of the runner.

The padded collar and tongue are meant to cushion the Achilles tendon, the ankles and the bridge of the foot. They also prevent in-shoe wobbling and unintentional shoe removals. The tongue unit even has a fabric lace-anchor to stop itself from deviating to the sides or wrinkling and causing blisters to the skin.

A fabric loop is stitched to the rear of the collar. This ‘pull tab’ helps the runner when it comes to widening the silhouette’s opening and facilitating the foot into, or out of, the interior chamber. It can also be used as a hanging ring for when the need to hang the shoe arises.


The current trend of Asics Gel Quantum 90 SG.
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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.