Uneven terrain, debris, and moisture found out on the trail call for the innovative tech of New Balance's Fresh Foam X Hierro Mid Trail Running Shoe. This dedicated off-road runner employs a Vibram Megagrip outsole, mid-cut synthetic upper, and toe protection to create a protective shell of durability and traction around the signature Fresh Foam X cushioning, which fights fatigue and helps us bounce from rock to log to root on our run.