New Balance Fresh Foam X Hierro V8 Review: A Comfortable Workhorse Trail Shoe

Introduction

When the Fresh Foam X Hierro V8 first went out for a test run, it was not a shoe that had been high on the trail shoe radar, and expectations were modest. That first run changed the picture. Since then, more than 80 miles have been logged in this cushioned trail shoe across varied underfoot conditions, and it has continued to impress as an easy, comfortable daily trainer.

Key Specs and Sustainability

The Hierro V8 retails in the UK for £140. A UK-size pair weighs in at 310g, with a 6mm heel offset and stack heights of 26mm at the heel and 20mm at the forefoot. It comes in a Neo red colorway plus three other options for men and women.

Sustainability is a real theme here. The engineered mesh upper is made from 100% recycled polyester from textile waste, the Fresh Foam X midsole contains 40% biobased material, and the Vibram outsole rubber uses at least 30% recycled rubber. New Balance positions it as its most sustainable running shoe today.

Fit and Upper Comfort

Sizing runs a little small, so going up half a size is recommended, which has worked consistently with New Balance running shoes. The toe box sits somewhere in the middle, neither narrow nor overly wide. Heel hold and midfoot lock-down have been solid across all 80-plus miles, with no foot slippage inside the upper.

The upper uses a standard, non-gusseted tongue, which is a surprise these days and one area that would have made the fit feel even more snug and secure. On the plus side, there is good padding around the ankle collar, heel and tongue, a substantial heel cup, structural overlays wrapping from heel to toe box, a midfoot locking lace system, a handy heel tab, and a real toe bumper up front.

Midsole and Ride Feel

The Fresh Foam X midsole delivers a bouncy, comfortable ride on all types of terrain while still letting you feel the trail underfoot. Compared with the much more deeply cushioned Fresh Foam X More Trail V3, which felt unstable on technical ground, the Hierro V8 gets the balance right: grounded, stable and connected while remaining genuinely comfortable.

Outsole and Traction

Flip the shoe over and you get a bright yellow Vibram outsole, though it is worth noting this is Vibram’s Ecostep rubber, not the Megagrip compound often cited elsewhere. It uses at least 30% recycled rubber and a 4mm traction lug pattern.

In wet and dry conditions on gravel trails, compacted pathways and woodland trails, grip has been good and the experience has been positive. The one weakness is deep mud: the shallower 4mm lugs did struggle in heavier, muddier terrain, even though they handled everything else well.

Durability After 80 Miles

With running shoes getting more expensive every year, mileage matters. After 80-plus miles, the upper shows no early signs of wear, not even at the flex points in the toe box. The Ecostep rubber is also holding up well, with only a fraction of wear on the outside edge of the heel despite plenty of tarmac miles, contrary to claims that this rubber wears down quickly.

The one concern is that the midsole is starting to separate slightly from the upper after only 80 miles. It does not look like it will get much worse, but it is a small mark against durability.

Scoring and Verdict

Price: 7/10. Comfort and performance: 8/10. Durability: 6/10. That totals a reasonable 21 out of 30.

For comparisons, the Hierro V8 sits not a million miles away from the Saucony Xodus Ultra 2 or the Asics Gel-Trabuco. If you want more cushioning, New Balance’s own Fresh Foam X More Trail V3 offers more, though the cushioning level here feels just right for most trail work.

Buying Advice

If you are looking for a workhorse trail running shoe for the drier months, something you can throw on and head out the door for training miles at any distance, the Fresh Foam X Hierro V8 is definitely worth a closer look. Just plan on going up half a size and be aware it is not the right tool for muddy conditions.

Conclusion

The Hierro V8 turned out to be a pleasant surprise: comfortable, versatile, sustainable and well built for firmer trails, with a minor midsole separation issue and shallow-lug traction limits as the main caveats. For everyday trail training, it earns its place.