Only wore these twice. Great shoes, but got them a 1/2 size too small Fabric type: Synthetic-and-rubber, Waterproof Sole material: Rubber Shaft height: Ankle Outer material: Synthetic Weight: 9.16 oz / 259 g Midsole: altra EGO Outsole: maxtrac Cushion: moderate Stack height: 25 mm Drop: 0 mm It’s a legendary shoe, now with a legendary Vibram® 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.