Gusseted tongue provides a secure midfoot lockdown; Lightweight, breathable mesh upper with 3D printed overlays for support and abrasion resistance; FuelCell foam delivers a propulsive feel to help drive you forward; Full-length Vibram Megagrip outsole with Traction Lug and deep 5mm lugs for enhanced grip in mountainous terrain; Traditional lace-up closure provides an adjustable fit with a classic look