BOBBLE ART's iconic Large Backpack and Drink Bottle Pack Cars design is made to the highest quality standards and is extremely durable. - Bag Dimensions: 31cm wide x 37cm high x 16.5cm deep- Bottle Dimensions: 500mL 20.5cm x 6.8cm- Adjustable padded back straps- Padded back support- Strong webbed hook for ease of hanging- Mesh pockets on each side for drink bottles- Two zippered compartments- Name tag in front compartment- Mesh pocket in main compartment- Backpack comes in a non-woven drawstring dust cover- BPA and Phthalates free- Bag :Matt PVC with a Polyester lining- Bottle: Food grade Tritan Plastic