Our hiking water backpack comes equipped with a 2L high-capacity hydration bladder, ensuring ample water supply for long, exhausting hikes or treks. Features: The main pocket of the hydration backpack is designed to accommodate a 2L water bladder. The top zipper pocket provides convenient storage for various outdoor essentials. The small pockets of the shoulder strap are perfect for storing your phone and water cup for quick and easy access. The hydration backpack is designed with an ergonomic, breathable, and softly padded back panel for maximum comfort. This is the ultimate outdoor sports gear for men and women, ideal for activities such as running, Cycle, camping, hiking, kayaking, and road trips. Specifications: Material: Nylon, EVA Color: Blue or Black or Orange or Grey (optional) Size: 24.5x5x39.5cm or 9.6x2x15.6in Package size: 45x25x3cm or 17.7x9.8x1.2in Package weight: 480g or 16.9oz Package List: 1 x hydration backpack 1 x water bag 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.