Design: Synthetic material with no-sew overlay for added durability GORE-TEX® waterproof fabric protects feet from wind, rain, and water without sacrificing breathability Adjustable lace closure for a secure fit In-Shoe Comfort: Fresh Foam X midsole delivers the most cushioned Fresh Foam experience for incredible comfort Durability & Traction: Toe Protect technology helps protect feet from rocks, roots, and debris Vibram® Megagrip outsole provides superior grip Additional Details: 8 mm drop Fresh Foam X midsole foam with approximately 3% bio-based content delivers our most cushioned Fresh Foam experience for incredible comfort. Bio-based content is made from renewable resources to help reduce our carbon footprint New Balance Women's Fresh Foam X Hierro v7 Gore-Tex Trail Running Shoes