1. Lightweight Design: The running hydration backpack features an allpocket design made of nylon material, ensuring travel without burden while providing an ultralight experience for enhanced comfort during outdoor activities. Its thoughtful construction prioritizes userfriendliness and portability for all runners. 2. More Storage: Experience easy packing with a variety of storage compartments and pockets to conveniently organize all your outdoor musthaves, ensuring everything is easily accessible during your adventures. 3. Ergonomic Design for All Shapes: With adjustable shoulder straps and side pockets to accommodate different body types, this hydration backpack offers a fit. The density, breathable mesh efficiently absorbs moisture for a comfortable workout experience without extra pressure. 4. Ensure Visibility: Featuring eyecatching reflective effects during both day and night, this hydration backpack keeps you visible by alerting passing vehicles to your presence.