Nathan AeroZip 1L (XS Women)

The AeroZip 1L Women's Hydration Race Vest is built for women chasing speed without compromise — a dialed, aerodynamic carry system contoured to the female form and engineered to move seamlessly with your body. Whether you're racing your first marathon, training for an ultra, or logging long trail miles, it delivers locked-in hydration and storage without the bulk of a traditional pack. Made from premium stretch fabrics with a women's-specific silhouette and compression-style fit, the AeroZip strips away weight where you don't need it and adds airflow where you do.  FEATURES: Fits two 17oz / 500ml NATHAN x HydraPak oval-shaped soft flasks (not included) Precision women's fit Full front locking zipper for easy on and off Side elastic cords with toggle locks for micro-size adjustments Perforated four-way stretch woven fabric enhances comfort and stability Four expandable power mesh front pockets plus one zippered pocket for valuables Weight w/o Flasks: 4.8oz / 137g Weight with Flasks: 7.6oz / 216g