Product Includes: you will get a pieces kids hydration backpack and a 1.5 liter hydration bag, hydration backpack measures approx. 14.9 inches x 8.2 inches x 3.8 inches, small, cute and lightweight, and with 2 large storage compartments and 2 zipper side pockets, there is enough space to store different children's outdoor activity items Size for Kids: this small kids cycling hydration backpack measures about 14.9 inches x 8.2 inches x 3.8 inches, small, cute and lightweight; And the water storage bladder bag is made of TPU material, durable and leakproof, is safe and odorless; The large opening design is easy to add water and clean, allowing children to replenish water in time during outdoor activities Waterproof and Durable: the kids hydration backpack is mainly made of nylon fabric, which is comfortable, waterproof, stainproof, wear resistant, and tear proof; The edges of the shoulder straps are also reinforced with stitched edges to ensure the long term use of the water rucksack Comfortable and Fit: the hydration backpack pack has adjustable chest straps and shoulder straps, which can be easily adjusted according to the child's body shape to better fit the child's shoulders, chest and waist; Moreover, the mesh shoulder straps and mesh back of the hydration backpack are padded, breathable and comfortable Wide Range of Applications: this compact children's hiking hydration backpack is lightweight and stable, making children feel relaxed and happy during outdoor activities, such as cycling, camping, running, jogging, climbing, walking and hiking Features: The vibrant color and reliable quality make the backpack suitable gift choice for you to share with your classmates, friends, or colleagues to let them enjoy the convenience of our products. Measuring at approx. 14.9 inches x 8.2 inches x 3.8 inches, the hydration backpack is easy for you to carry. Specifications: Material: nylon fabric and metal zippers Color: mainly purple Size: approx. 14.9 inches x 8.2 inches x 3.8 inches Water storage bladder bag: about 50.7 oz/ 1.5 l Package includes: 1 x Hydration backpack 1 x Hydration bag Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.