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New Balance Fresh Foam X Hierro v9 Reviews

Trail

Runners praise the New Balance Fresh Foam X Hierro v9 for plush cushioning, good grip and comfort on easy trails and long days.

75Signal score

50% positive

32reviews

How the signal works

The signal score

A score out of 100 for how well reviewed a product is next to others of its kind. It rises with positive reviews and with how many there are; negative and mixed reviews take points off. The best in each category scores in the 90s.

So a handful of glowing reviews can’t beat a product lots of people like. No sponsored placements.

Updated 13 Nov

Check price on Amazon Read 32 reviews

What people mention

Often liked

Great cushioning8 Comfortable fit6 Great for long runs4 Stable3

Common concerns

Unstable7

Real runner experiences (32)

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Showing 7 reviews mentioning unstable Show all

Reddit · r/trailrunning · Aug 2, 2026 · summarized

Negative

On its first run, a flat-footed runner's Hierro v9 rolled so much their big toe touched the ground and the midsole tore; they're returning it.

Reddit · r/trailrunning · Mar 24, 2026 · summarized

Negative

A runner took the Hierro v9 on trail once and found it one of the most dangerous shoes they've worn; it's now a road and gravel shoe.

Reddit · r/trailrunning · Feb 28, 2026 · summarized

Mixed

On a 5.5-mile run, a runner found the Hierro v9 very comfortable but noticed the inward roll straight away.

Reddit · r/trailrunning · Nov 26, 2025 · summarized

Mixed

At 250 miles, a runner finds the Hierro v9's grip great but it rocks side to side; only for strong ankles.

Reddit · r/RunningShoeGeeks · Nov 11, 2025 · summarized

Negative

On a 10-mile technical trail run and a 10-mile road run, a runner found the Hierro v9 comfortable but their foot kept rolling inward; the stack felt too high.

Reddit · r/trailrunning · Oct 10, 2025 · summarized

Negative

At 285 km of road-to-trail, a runner finds the Hierro v9 wearing quickly and occasionally twisting under the foot.

Reddit · r/trailrunning · Sep 18, 2025 · summarized

Negative

A 90 kg trail runner who owned three earlier Hierros found the v9 rolled completely to the inside within 100 km.

See all reviews ↓

Common questions about New Balance Fresh Foam X Hierro v9

What do runners say about New Balance Fresh Foam X Hierro v9?

Runners praise the New Balance Fresh Foam X Hierro v9 for plush cushioning, good grip and comfort on easy trails and long days. The main downside is instability, with many reporting the foot rolling inward or the shoe feeling tippy at its high stack. A few get blisters from the toe cap, and some see early wear.

Is New Balance Fresh Foam X Hierro v9 worth it?

Of the 32 reviews with a clear verdict, 50% are positive, 16% mixed and 34% negative. The praise mentioned most is great cushioning. The most common complaint is unstable.

What are the most common complaints about New Balance Fresh Foam X Hierro v9?

The complaints reviewers mention most: unstable (7 reviews), blisters (2 reviews) and narrow fit (2 reviews). For example: A 90 kg trail runner who owned three earlier Hierros found the v9 rolled completely to the inside within 100 km.

Where do these New Balance Fresh Foam X Hierro v9 reviews come from?

We collected and summarized 32 experiences shared on Reddit, YouTube and blogs, with links to the original sources. Reviews submitted here are checked for spam before they appear. Every review, submitted here or collected, is read as positive, mixed or negative.