With the durability and the cush to withstand ultra distances, the Olympus 6 Trail Running Shoe is our long-run companion. Built with Altra's Original Footshape Fit, this pair gives our toes plenty of room to splay and our feet the space to swell with the heat and the mileage, while the plush midsole takes on the brunt of every strike. As the ground underfoot changes-muddy, mossy, dusty, rocky-the grip remains the same with the sticky Vibram Megagrip compound and revamped lug pattern chewing up anything in our path.