The Fresh Foam X Hierro v9 sneaker features a dual-density Fresh Foam X midsole with approximately 3% bio-based content, providing a cushioned experience. This midsole construction incorporates a softer top layer for comfort and a firmer bottom layer to ensure stability on uneven terrains. vibram® megagrip™ outsole with traction lug™ technology and a revamped tread pattern toe protect technology gusseted tongue
