MEN'S HIERRO V9 - D - SLATE GREY FACE The Big Buckle version features

The Big Buckle version features a large

and perspiration

Asymmetrical arch support hugs your arch just right

Enjoy even more energy return with every step

starting with an implemented midfoot band for a more secure

MEN'S HIERRO V9 - D - SLATE GREY FACE The Big Buckle version featuresThe 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. Dual density Fresh Foam X