It&&';;s a legendary shoe, now with a legendary VibramA(R) Megagrip outsole for fierce grip. We turned up the traction so you can take on legendary adventures. A revised midsole foam is designed to deliver a comfortable connection to the ground. No-sew overlays and a ripstop mesh upper are made for high-mileage durability. Get that classic Altra feel with zero drop and our roomiest toe box, with plenty of room to help your toes move more freely, and space through the midfoot. Grip, durability, and connection on the trail? Legendary. Best For Trail running, hiking, thru hiking Heel-to-Toe Drop 0mm Upper 100% RPET ripstop mesh upper Midsole Altra EGO(TM) Outsole VibramA(R) Megagrip Weight 11.55 oz / 327.4 g Cushion Mid Stack Height 25mm / 25mm Support Neutral FootShape Original What&&';;s New VibramA(R) Megagrip outsole for unparalleled grip on both wet and dry surfaces No-sew overlays and a 100% RPET ripstop mesh upper, designed for high-mileage durability Updated lighter weight Altra EGO(TM) midsole foam, made for comfort and ground connection