The Dynafit Ultra 100 Men's Trail Running Shoe ensures maximum cushioning worthy of the longest competitive races out there. Despite its high-stack midsole, the Ultra 100 feels springy and mobile with a rockered profile that encourages quick heel-to-toe transitions. A 6mm drop best suits midfoot-to-forefoot strikers, and Vibram's Megagrip rubber compound keeps a solid grip no matter where you strike. The upper features an anatomically correct heel that reduces stress on the Achilles tendon. The seamless tongue finishes the shoe off with a bulk-free fit.