Features 1. Detail Design: The water cup bag design can accommodate a 500ml capacity water cup, making it convenient to take it anytime. The alloy zipper is durable and has undergone countless manual tests, making it delicate, smooth and not stuck. Reinforced handheld, soft and breathable to reduce weight, can be lifted for a long time, and is not easy to break. Large capacity travel backpack, with beautiful and powerful appearance, trusted by millions of people. 2. High Quality Materials: Made of high-density composite materials, waterproof and reverse osmosis fabric, fearless of wind and rain when traveling in adverse weather, waterproof and moisture-proof, suitable for various harsh environments. 3. Luggage Strap: Hand over the weight to the box, suitable for luggage within 24 inches. Breathable back cushion and soft shoulder straps. 4. Humanized Design: Equipped with an independent computer compartment, USB charging interface, multi-layer storage, and ergonomic design. Easy charging anytime, anywhere. 5. Widely Used: for school, work, travel, etc. Carry your backpack and embark on a quick and easy journey. Specification Material: Nylon Color: Black, Green, White, Pink Size: 43 x 30 x 16 cm Weight: 630 g Package Include: 1x Large Capacity Backpack