DNA FLASH v2 nitrogen-infused foam provides excellent energy return with every stride

and that formula has now been tweaked to be even more capable

track workouts

Double-lace lock

6 % Recycled materials in the upper

Altra Torin 9 Women's Track DNA FLASH v2 nitrogen-infused foamTap into unique comfort with the Torin 9. Its responsive, soft, and performance focused, so you can be uniquely you on your next road run. With an all new durable Vibram XS DURA rubber outsole, its 8. 5% grippier than the Torin 8 and made for whatever the road throws your way. An all new P35X dual density foam is built to deliver an energetic, cushioned underfoot feel by combining a soft foam with a firmer one for a stable and comfortable ride. We