The Altra Lone Peak 9 is the next chapter of the brand's legendary trail runner. A reengineered 100% recycled ripstop mesh upper with no-sew overlays adds durability for high-mileage adventures, while a revised Altra EGO midsole tunes the ride for ground feel and comfort. The improved MaxTrac outsole bites into mixed terrain, and the StoneGuard, GaiterTrap, and zero-drop FootShape platform stay true to Lone Peak DNA. Mid cushion, 25mm stack, 0mm drop, neutral. APMA Seal of Acceptance.