Features: Lightweight Design: This cycling running vest is crafted for both men and women, ensuring comfort and minimal bulk during your outdoor activities, so you can focus on your performance. Hydration On-the-Go: Equipped with a large capacity water bladder, this hydration backpack provides ample hydration for hiking, running, and cycling, keeping you refreshed and energized throughout your adventures. Breathable Material: Made from breathable and lightweight fabric, this hydration backpack ensures optimal airflow, preventing overheating and allowing you to stay cool during intense workouts or long hikes. Versatile Use: Perfect for hiking, running, cycling, and climbing, this hydration backpack is designed to meet the needs of various outdoor activities, making it an essential companion for all your adventures. Easy Storage: Featuring multiple compartments, this water storage reservoir bag offers organized space for your essentials, allowing you to carry everything you need for your outdoor excursions efficiently. Specifications: Material: Polyester Size: 29*10*41cm Capacity: 2L Note: Due to the screen lighting effect, the actual color of the product may be slightly different. Due to manual measurement, please allow size error. Include: 1*Water Backpack Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.