New Balance Fresh Foam X Hierro V8 Trail Running Shoe (Style 5BG2)

Our review of the New Balance Fresh Foam X Hierro V8 trail running shoe finds a model built for runners who want plush off-road cushioning without sacrificing traction or durability. The single biggest reason to consider these shoes is the Fresh Foam X midsole with roughly 40% bio-based content, which provides a noticeably soft, responsive ride while also reducing the environmental footprint. The Hierro V8 mixes that cushion with a Vibram Eco-Step Natural Outsole and Micro-Traction Lug pattern for reliable grip on varied trails, paired with a breathable yet protective upper.

Key Features

• Fresh Foam X midsole: Delivers the shoe's most cushioned Fresh Foam experience, offering long-lasting comfort on long miles and uneven terrain.
• Bio-based content: Approximately 40% renewable material in the foam reduces the shoe's carbon footprint while maintaining performance cushioning.
• Vibram Eco-Step Natural Outsole: Provides durable traction made from over 90% petroleum-free ingredients for grip and lower environmental impact.
• Micro-Traction Lug: The Vibram lug pattern improves bite on mixed surfaces, helping stability on loose or wet trail sections.
• Upper construction: Breathable yet protective materials balance ventilation with toe and midfoot protection on rocky terrain.

Who It's For

The Hierro V8 is best for trail runners and hikers who prioritize cushioning and comfort over technical minimalism, especially those covering longer distances on mixed to moderately technical trails. It suits runners who value a softer ride and want outsole materials with lower petroleum content.

Runners seeking a minimal, ultra-light feel or those who need very narrow, race-focused racing flats should look elsewhere; the Hierro V8 leans toward plush cushioning and protective construction rather than a stripped-down race shoe.

Pros & Cons

Pros

• Excellent comfort and cushioning from the Fresh Foam X midsole for long runs.
• Durable Vibram Eco-Step Natural Outsole offers strong tread life and eco-focused materials.
• Breathable, protective upper balances ventilation with on-trail protection.
• Good overall support and perceived build quality for rugged use.

Cons

• Fit is reported as mixed by some customers, with a tendency for some to find the shoe runs small.
• Grip reviews are mixed in certain conditions, so expect variability on very slick surfaces.

Specifications

Our Verdict

The New Balance Fresh Foam X Hierro V8 is a strong pick for recreational and long-distance trail runners who want a cushioned, supportive shoe with durable, eco-minded outsole materials. It delivers comfort, durability, and a solid balance of traction and protection, making it a good value for those prioritizing long-ride comfort on varied trails.

Frequently Asked Questions

Do these run true to size?
Fit is mixed among users; many find true to size but some recommend trying a half size up if you have a wider forefoot.

Is the outsole eco-friendly?
Yes, the Vibram Eco-Step Natural Outsole is made with over 90% petroleum-free ingredients to reduce environmental impact.

Are these good for long trail runs?
Yes, the Fresh Foam X cushioning and supportive upper make them well suited for long miles on moderate to rugged trails.