We spent 6.6 hours reading reviews from experts and users. In summary, this is what runners think:

6 reasons to buy

  • Many runners appreciated the lightweight structure of the Merrell Fluxion.
  • This running shoe is comfortable, according to several reviewers. 
  • A few wearers appreciated the shoe’s roomy toe box. 
  • The outsole unit performs well on various surfaces, said some consumers. 
  • A commenter mentioned that the shoe offers just the right amount of support. 
  • The shoe fits well, based on some reviews.

2 reasons not to buy

  • One user complained because the upper unit started to rip after a few uses. 
  • A tester noted that the shoe’s sole is a bit firm.

Bottom line

The Merrell Fluxion is a lightweight running shoe that performs well on both paved surfaces and light trails. It is crafted using high-quality materials aiming to provide a more energetic and efficient running experience. It works best for neutral runners or those who do not overpronate.


Terrain: Road, Trail
Arch support: Neutral
Weight: Men: 7oz
Heel to toe drop: Men: 4mm | Women: 4mm
Pronation: Neutral Pronation
Arch type: High arch
Use: All-day wear
Material: Mesh upper, Vegan
Features: Breathable | Cushioned | Comfortable
Strike Pattern: Forefoot strike
Distance: Competition
Heel height: Men: 30mm | Women: 30mm
Forefoot height: Men: 26mm | Women: 26mm
Brand: Merrell
Type: Low drop | Maximalist
Width: Men: Normal | Women: Normal
Price: $90
Colorways: Blue, Grey
Small True to size Large
Forefoot fit
Narrow Wide
Heel fit
Narrow Wide
Tight Roomy
Stiff Flexible
Warm Breathable
Firm Plush
Stability 5/10
Durability 8/10
Comfort 7/10
Traction 8/10
See more facts

- The Merrell Fluxion is a versatile running shoe that is created for running in light trails. This vegan-friendly shoe is crafted with advanced technologies that aim to deliver a comfortable and efficient running experience. 

- This lightweight running shoe features a mesh upper, which offers a combination of protection and breathable comfort. It keeps the foot dry and cool throughout the running session.  

- To provide a stable and responsive ride, this shoe utilizes the compression-molded EVA midsole. This soft midsole material offers excellent comfort and underfoot protection.  

The Merrell Fluxion is constructed with a standard running shoe length. Consumers are welcome to get a pair in their usual sizing expectations. However, it is highly recommended to check on the shoe first before making any purchase decisions to ensure a pleasant in-shoe feel. Consumers may also check the general feedback of users about sizing. 

Several components affect the fit of this neutral running shoe. This includes the padded tongue and traditional lace closure that aim to provide a snug and customized in-shoe feel. Another element is the removable footbed that allows the user to adjust the comfort level of the shoe. 

Incorporated into the outsole unit of the Merrell Fluxion is a durable material called the M Select™ Grip. This outsole material is highly slip-resistant. It contributes excellent traction on both wet and dry ground. It also provides excellent protection against abrasive elements.

Completing the outsole’s design is the highly angled lug pattern, which channels excess water away from the underfoot. 

The Merrell Fluxion utilizes the compression-molded ethylene vinyl acetate (CMEVA) foam. This cushioning material absorbs landing impact to provide a more responsive and stable ride. 

An ethylene-vinyl acetate (EVA) removable footbed is also added in this trail running shoe to provide additional comfort and protection. It also permits the runner to adjust the shoe’s cushioning level. 

Just like the Merrell Trail Glove 5, the Merrell Fluxion also uses vegan-friendly materials. The upper unit of the shoe is a combination of TPU and mesh fabric. This combination enables the shoe to provide a supportive and breathable coverage. The mesh fabric allows for continuous airflow, keeping the foot dry and cool during the whole running session. 

Integrated into the shoe is the Hyperlock™ TPU film heel counter for a stable ride. This element keeps the heel in place and prevents it from sliding up and down while walking or running. 

This Merrell trail running shoe also features a moderately padded tongue and heel collar for a more comfortable in-shoe feel. These components also help prevent blisters and skin irritation. 

The traditional lacing system is used in the shoe for security. The shoelaces allow the user to easily adjust the tightness and looseness around the shoe. 

The Merrell Fluxion also has a waterproof version, the Merrell Fluxion GTX. It utilizes the Gore-Tex membrane that prevents the water from getting inside the shoe without sacrificing breathability. The waterproof version features the same midsole and outsole technologies that are used in the Merrell Fluxion. 


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.