New Balance Fresh Foam X Hierro v9 - Grey/Black - UK 13.5
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Product Information
Full details
The New Balance Fresh Foam X Hierro v9 is designed for trail runners who prioritize long-distance comfort and reliable traction on unpredictable terrain. It excels by balancing plush, dual-density cushioning with a rugged outsole, though its specialized build may feel slightly heavy for those accustomed to minimal speed-focused racing flats.
All features
| Age Group | adult |
|---|---|
| Colour | Grey |
| Gender | Male |
| Shoe Size UK | 13.5 |
| Accent Colour | Black |
| Shoe Type | Trainers |
| Series | Fresh Foam X Hierro v9 |
| Model Part Number | MTHIERZ9 |
| Brand | New Balance |
Extended Product Information
FAQs
Is the Hierro v9 waterproof?
This specific model features a breathable knit upper and is not inherently waterproof. For wet conditions, consider the GORE-TEX version of the series.
Are these suitable for road running?
While they can handle occasional road use, the aggressive 6mm lugs are optimized for trails and may wear down prematurely on hard, abrasive pavement.
How do the sizes run?
New Balance sizing is generally standard; however, the gusseted tongue design creates a secure, snug fit that some runners prefer to upsize by half if they have wider feet.
Can I replace the insoles?
Yes, the stock insoles are removable and can be swapped for custom orthotics or aftermarket insoles.
How often should I replace these trail shoes?
Depending on the harshness of the terrain, expect to replace these shoes every 300 to 500 miles, specifically checking the lug depth for signs of wear.
Troubleshooting
Sensation of heel slippage
Utilize the 'runner's loop' or 'lock lacing' technique with the top eyelet to secure the heel fit.
Debris getting into the shoe
Ensure the gusseted tongue is pulled taut when tying laces to fully close the gap at the throat of the shoe.
Foam feels stiff initially
The dual-density foam requires a short break-in period of 20-30 miles to reach optimal cushioning properties.
Pros and Cons
Pros
- Excellent traction on technical trails
- High level of shock absorption for long runs
- Breathable knit construction
- Debris-resistant design
- Durable Vibram outsole
Cons
- Heavier than minimalist trail models
- May feel too bulky for fast-paced road running
- Requires break-in time for the rigid lug pattern
Setup, Compatibility & Care
To ensure the longevity of your Hierro v9, avoid machine washing the trainers, as this can degrade the specialized foam structure. Instead, wipe the knit upper with a damp cloth and mild soap. When the outsole becomes clogged with mud, allow it to dry before brushing away debris to preserve the integrity of the Vibram rubber. Ensure the laces are tightened firmly but not overtightened to allow the gusseted tongue to sit flat across your instep.