The trail won’t know what hit it with the new Olympus 4. This new model has a new look and everything you need for a new trail adventure. The breathable, durable engineered mesh upper is complete with a premium tongue for a tailored, locked-in feel. The Vibram MegaGrip outsole excels in both wet and dry conditions while the high-performance InnerFlex midsole offers comfortable flexibility. Strap your gaiters into the GaiterTrap and head for the trails with the max cushion, max comfort, and max performance Olympus 4.
FootShape Toe Box
Traditional running shoes feature pointy toe boxes that squeeze the toes out of their natural position—increasing risk of bunions, hammertoes and plantar fasciitis. Altra’s FootShape toe box allows the toes to relax and spread out naturally and the big toe to remain in a straight position. This reduces over-pronation, enhances stability and creates a powerful toe-off to maximize running performance.
Balanced cushioning platform
Places your heel and forefoot the same distance from the ground to encourage proper, low-impact form throughout your trail run.
Gaiter Trap
Hook-and-loop tab allows strapless gaiter attachment that prevents debris from building up beneath the shoe.
Vibram MegaGrip
A high performance sticky rubber compound featuring unparalleled grip on wet and dry surfaces, rugged longevity and optimal ground adaptibility.
InnerFlex
Grid-like grooves in the midsole allow your foot to flex while being lighter, for more speed and better performance.


















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