A fresh trail running shoe emerges with the New Balance Fresh Foam Hierro v3. This updated trail running favorite now features a more modern, bootie construction made from a lightweight, second skin style Hyposkin material for an adaptive fit. The Vibram® Megagrip outsole provides a more secure, slip-resistant footing on rugged, uneven trails. Take these sleek, performance-ready trail running shoes on your next trail adventure. Upper: Bootie-style construction with an adaptive, Hyposkin material.. No-sew overlays wrap the foot in lightweight support and comfort. Toe Protect reinforcement provides protection for toes against aggressive terrain. Midsole: Fresh Foam is a fusion of plush foam and advanced design software that creates an ultra-cushioned and geometrically sound experience. Removable EVA footbed. Outsole: Vibram® Megagrip enhancement helps provide excellent durability and traction.