The Duo is the perfect combination of maximum cushion and minimal weight. The blown rubber outsole, injection molded midsole and super thin mesh upper all work together to create a super fast, cushy, lightweight racing shoe. The Duo is the perfect example of Speed to the Max.
FOOTSHAPE™ TOE BOX
Altra's FootShape™ Toe Box toe box allows the toes to relax and spread out naturally and the big toe to remain in a straight position for maxium stability and power.
ZERO DROP™ PLATFORM
Every Altra shoe features a Zero Drop™ Platform that places the heel and forefoot the same distance from the ground for natural alignment and a low-impact landing.
- Ideal Uses: Road Running, Road Racing, Hot Weather Endurance Racing
- Weight: 7.9 oz. / 224 g
- Insole: 6 mm Contour Footbed
- Platform: Natural Foot Positioning: FootShape™ Toe Box, Cushioned Zero Drop™
- Stack Height: 30 mm
- Midsole: Lightweight injection molded foam
- Outsole: Blown rubber with full contact
- Upper: Thin and reinforced, breathable upper
- Other Features: Nubuck pillow tongue, DriLex lining
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