The Altra W Olympus 5 is a high-performance trail running shoe designed for long distances. It features a zero-drop platform, which means the heel and toe are at the same height, promoting a natural running gait. The shoe also has a wide toe box, allowing your feet to spread out naturally and providing a comfortable fit. The Olympus 5 is built with a durable outsole that provides excellent traction on a variety of surfaces. It is a great choice for runners who are looking for a comfortable and supportive shoe for long runs on trails.