Updates to Asics NitroFuze 2

  • The Asics NitroFuze 2 is a running shoe that’s designed for those who have neutral pronation. It’s an update to a fresh series, and it features subtle changes that make it look and feel different. One significant difference is in its upper unit; while the previous one had stitched overlays and puffy mesh construction, the 2nd version has printed reinforcements and a less bulky look. So, the reconfiguration of the façade allows it to have a more streamlined look.
  • When it comes to the underfoot platform, this product stays faithful to its roots. It still utilizes the fuzeGEL™ unit, which is made up of a shock-absorbing silicone gel and foam. On the outsole is a strategically placed rubber compound that delivers traction and protection from abrasion.

Size and fit

The Asics NitroFuze 2 is true to size. It accommodates the standard preferences of runners when it comes to length. The available widths are D – Medium and B – Medium for men and women, respectively. It has a semi-curved shape which mimics the usual curve of the human foot.


AHAR® or Asics High Abrasion Rubber is the compound that’s used for the outsole unit of the Asics NitroFuze 2. It’s designed to afford protection against wear and tear. It’s even placed in areas that are more prone to abrasion. It is also responsible for surface traction, which is vital for every run. This material is also used in the Asics Gel Nimbus 21, which is another road running shoe from the brand.

There are mild flex grooves and protrusions on the surface of the sole unit. The purpose of these details is to provide flexibility and added traction.


The midsole unit of the NitroFuze 2 makes use of the fuzeGEL™ technology. It is born out of the amalgamation of foam and the GEL® cushioning system, which is a silicon-based unit that works on the absorption of impact shock during the striking phase of the gait cycle. Now, this full-length compound is given the capacity to cushion the foot and attenuate impact all throughout the running session.

An Ortholite sock liner is placed on top of the primary midsole unit. It adds a bit more cushioning for the underfoot. It also has antimicrobial and anti-moisture properties which ensure a healthy and odor-free in-shoe environment.


Breathable mesh makes up most of the upper unit of the NitroFuze 2. The open pores allow environmental air to enter the shoe and keep the foot dry and well-ventilated.

Thin overlays are printed onto the mesh material. They reinforce the façade of this running shoe, maintaining its form and structure in the process. They also help in keeping the foot in place as they’re directly connected to the lacing system.

A traditional lacing system is used on the upper. The fabric laces are flat and stretchy. They’re designed to stay tied and not to get unraveled quickly.

The padded tongue offers support and cushioning for the instep of the foot. A loop is placed on it to prevent it from deviating to the sides. The last crisscross of the shoestrings goes through that loop, fundamentally anchoring the tongue and keeping it in place.

Foam is added to the collar. This plush opening hugs the lower part of the leg, the ankles, and the heel. It also keeps the foot from exiting the foot-chamber accidentally.

A simplified design is employed in the Asics NitroFuze 2. It doesn’t feature a lot of bulky add-ons and other frills. Asics have aimed for this shoe to be effective as both a running companion and as a daily choice for casual shoe enthusiasts.


The current trend of Asics NitroFuze 2.
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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.