New Balance Hierro v9 8mm this base layer ensures maximum

this base layer ensures maximum comfort and control with no distractions — just performance

do-everything roller for mobility

Compatible with 500ml soft flasks (sold separately)

extended battery life

Lightweight perforated mesh construction

New Balance Hierro v9 8mm this base layer ensures maximumThe New Balance Fresh Foam X Hierro v9 offers ultimate reliability for adventurous terrain, with technical features designed specifically for the trail runner. Dual density cushioning combines plush comfort with a more stable underfoot feel. A Vibram outsole features a revamped tread pattern and deeper, 6mm lugs, for superior traction, and a knit upper with a gusseted tongue is breathable, while helping to protect against loose debris. Key Features