Topo Athletic | Ultrafly 5 | Women's | Tan/White Split Neck 6L Nathan x Hydrapak insulated

6L Nathan x Hydrapak insulated hourglass that keeps your water colder longer and minimizes sloshing

is wearing size Large

Its ribbed cuff design provides extra coverage for your ears

Their sleek

Propulsive FuelCell Midsole: Full-length FuelCell foam delivers a dynamic

Topo Athletic | Ultrafly 5 | Women's | Tan/White Split Neck 6L Nathan x Hydrapak insulatedMORE COLORS Introducing the Topo Ultrafly 5 your ultimate daily running companion designed for comfort and light pronation support. With a spacious toe box and a natural ride, this latest version features an updated ZipFoam midsole that is softer, lighter, and more responsive. The increased stack height, now with an additional 2mm of foam, enhances cushioning without adding extra weight. The dual density midsole, equipped with a built in medial post,