The Arc’teryx Norvan is a trail running shoe with some serious mountain credentials. If you're looking to challenge yourself on aggressive mountain terrain, then the Arc’teryx Norvan has your back. The sole has a special compound of Vibram rubber to provide grip and durability. The tread lugs are arranged in a chevron pattern to grip wet rocks and penetrate the ground. There is a fixed inner liner to wrap your foot, providing comfort and stability over long runs.