Carry everything you need and stay hydrated during your run with the lightweight Nathan VaporAiress Lite 4L Hydration Vest. This hydration pack fits like it was tailored for you with Nathan’s Adaptive-Fit™ technology. Nathan designed the VaporAiress specifically for females, integrating two set-it-and-forget-it hook and loop panels to adjust it for your body type. The lightweight and breathable mesh and stretch woven materials provide comfort as you rack up the miles. This hydration vest comes equipped with a 2L bladder that has a quick release valve for all of your hydration needs. There are also seven total pockets, including front pockets that fit bottles or flasks up to 22 oz and back pockets for storing extra layers. Be ready to rock the trails with the Nathan VaporAiress Lite 4L Hydration Vest.