Tackle the trails with the New Balance Fresh Foam X Hierro v9. Sporting a Vibram® outsole, grippy lugs and durable materials, the Hierro v9 is built to take on any terrain. Dual-density cushioning combines plush comfort with a more stable underfoot feel that makes every adventure more enjoyable. Details: Upper: A breathable knit mesh with printed overlays and gusseted tongue keeps debris out while allowing airflow. Toe Protect technology shields your feet from rocks and roots. Midsole: Dual-density Fresh Foam X cushioning gives you plush comfort without sacrificing stability, absorbing impact while maintaining ground feel for uneven terrain. Outsole: Vibram® Megagrip with redesigned 6 mm lugs delivers superior traction on wet, dry and technical terrain.