Altra Women's Duo Black/Blue
- Weight: 5.3 oz / 150 g
- Insole: 6 mm Contour Footbed
- Midsole: Max-LT™
- Outsole: Blown rubber with full contact
- Cushion: Max
- Stack Height: 30 mm
- Upper: Thin and reinforced, breathable
- Other Features: Nubuck pillow tongue, Drilex lining
The Duo is your max cushion, race-day shoe. It offers maximum cushion and performance, with minimal weight. And with small tweaks like an updated, reinforced mesh and a padded and gusseted tongue, you will experience speed to the max.
Places your heel and forefoot the same distance from the ground to encourage proper, low-impact form throughout your trail run.
FOOTSHAPE™ TOE BOX
Allows your toes to relax and spread out naturally for more comfort and stability in uphill climbs and downhill descents.
The Fit4Her™ technology means we customize every women's shoe to the unique anatomy of the female foot.
Grid-like grooves in the midsole allow your foot to flex while being lighter, for more speed and better performance.
An outsole technology that actually maps the bones and tendons of your foot to help it bend and move naturally.