What Keen loves most about hiking fast is experiencing more things. More sunrises from the overlook more high fives at the summit more post-hike tea with friends back at the parking lot. And more terrain — asphalt to trail to scree to stone steps. So they took the room-for-your-toes comfort protection and stability of their iconic hiker and gave it a running shoe feel with a waterproof engineered knit upper and all-terrain tread.