The Altra Men's Olympus 275 Trail Running Shoes are built for runners who go all in on long miles and technical terrain. A one-piece MATRYX woven upper delivers lightweight durability and protection for high performance trail running. A built-in scree sleeve helps block debris, keeping feet comfortable and focused through rugged conditions. Underfoot, a compression-molded EVA midsole provides high cushioning designed to last through all-day efforts. Finished with a Vibram Megagrip outsole, zero drop platform, and Original FootShape(TM) fit, this shoe supports natural movement while delivering confident traction and protection on any trail.