M's Olympus 3.5

The Olympus 3.5 features a new, more durable upper fabric pattern, but otherwise retains the awesome attributes of the 3 to create a flexible and stable ride. The combination of InnerFlex™ as well as a 3mm reduction in stack height creates a midsole that is more flexible and responsive, and when paired with a widened platform and grooved outsole, the Olympus provides suprising stability on uneven surfaces. Vibram® MegaGrip® rubber sculpted in the Altra TrailClaw™ pattern, continues to provide the traction needed for a variety of terrain.