The Duo is the perfect combination of lightweight feel in a max cushioned package. The blown rubber outsole, injection molded midsole and super thin mesh upper, combine to create a crazy fast, cushy, lightweight racing shoe. The Duo delivers Fit4Her Speed to the Max.
Mesh
Rubber sole
Surface: Road. Differential: 0 mm. Altra™ recommends those new to natural running and zero-drop footwear should transition slowly by wearing these on shorter runs and gradually building up to regular mileage. Altra Zero Drop™ Platform:
Heel and forefoot are equal distance from the ground.
Promotes proper form to reduce initial impact.• Natural Achilles loading for enhanced propulsion.• 1:1 ratio naturally aligns feet, back, and body posture.
Weight-ba
Hit the ground running in the Altra™ Footwear Duo Racing Shoes.