About the Altra Olympus 5 Altra's Olympus 5 is a comfortable and plush trail runner, allowing you to be adept across any terrain. The Altra EGO™ Max (2023 model, 2024 Compression Molded EVA) midsole foam delivers lightweight yet durable performance with a little extra bounce, protecting your feet whilst offering fantastic comfort. A breathable mesh upper allows you to stay cool and fresh on the trail, whilst the grippy outsole delivers expert traction and stability across dirt, mud and rocks, adaptable across wet and dry conditions. For a low-impact, long-lasting and technical trail runner, Altra's Olympus 5 will take you the distance. Olympus 5 Men's Trail Running Shoes