Verdict from 69 user reviews

8 reasons to buy

  • Comfort: Most runners mentioned that the Agility Synthesis 2 is very comfortable. It has generous padding in the heel, forefoot, and tongue that promotes irritation-free coverage.
  • Cushioning: Some testers mentioned that the shoe has great cushioning that is soft and bouncy.
  • Traction: Satisfied trail runners said that the Quantum Grip outsole works well on asphalt and wet surfaces.
  • Ground contact: According to several user reviews, the level of cushioning gives them the feeling of being connected to the ground.
  • Toebox: Wide-footed runners appreciate the roomy toebox of the Merrel Agility Synthesis 2.
  • Underfoot protection: The rock plate shields the feet while running on rocky terrain.
  • Flexibility: User reviews mentioned that the sole is thick but still flexible.
  • Versatility: People also enjoy wearing the Agility Synthesis 2 for casual walks, running errands, and gym workouts.

2 reasons not to buy

  • Lacks durability: Some disappointed trail runners reported that the outsole is not sturdy enough for rocky surfaces.
  • Lacing: According to a few annoyed reviewers, the laces come off untied several times during the run.

Bottom line

The Agility Synthesis 2 from Merrell offers the things you need to conquer the trail in a lightweight package. It is flexible and has the agility you need to perform, no matter the pace and the distance.

More suitable for light trail surfaces and quick-paced training, the Agility Synthesis 2 is a great option for those who prefer a soft underfoot cushioning and close-to-ground sensation.

Tip: see the best trail running shoes.

Merrell Agility Synthesis 2: Flexible and comfy trail runner

A lightweight trail runner, the Agility Synthesis 2 offers a flexible and springy ride without compromising ground contact. It has a cushioning that is soft enough for all-day comfort and traction that works on both dry and wet surfaces.

Best for:

  • light trail
  • uptempo, daily runs
  • runners who want to stay close to the ground

What's new?

  • The upper has been modified for breathability and improved fit.
  • The new FloatPro Foam midsole offers lightweight cushioning that is soft and consistent, miles after miles.


How Merrell Agility Synthesis 2 ranks compared to all other shoes
Bottom 23% trail running shoes
All trail running shoes
Bottom 32% Merrell running shoes
All Merrell running shoes
Bottom 28% neutral running shoes
All neutral running shoes


The current trend of Merrell Agility Synthesis 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.