This backpack is made of waterproof and durable polyester fiber, with good breathability and heat dissipation. Independent shoe bin design&wet bag. The built-in charging interface allows you to charge your phone anytime and anywhere. There is a zippered pocket on the back of the bag, which can store valuable items such as mobile phones and iPads, preventing theft and theft. It is very convenient. External dimensions: (W * L * H) 45 x 32 x 20 cm. Product Description: External dimensions: approx. 45 x 32 x 20 cm. Calculated volume: 42 liters. Laptop compartment: 36 x 32 cm Weight: 1000 grams Material: 100% polyester, sturdy material, easy to clean, washable. Decorations are not included. Color: Light blue Package includes 1 backpack Description: Women's Large Travel Backpack This backpack is made of waterproof and durable polyester fiber, with good breathability and heat dissipation. Two padded shoulder straps provide convenient carrying and strength reinforcement, reducing your shoulders, and maintaining cool when carrying, while being strong, firm, and not fading. [Separate shoe compartment design&wet bag] Main compartment x 2, notebook compartment x 2 (suitable for 13 "" tablets or 14 "" laptops), and many other pockets for different purposes. Materials can help you separate wet and dry items. If you have wet clothes or towels, you can put them in a wet bag. USB charging port With a built-in charging port, you can charge your phone anytime, anywhere. The anti-theft multifunctional backpack has a zippered pocket on the back, which can store valuable items such as mobile phones and iPads. It is both anti-theft and practical. Multifunctional backpack: It can be used as a daily backpack, a spacious college backpack, a professional laptop backpack, or for weekend travel, or for daily use anywhere when occasionally used. Space dimensions: (W * L * H) 45 x 32 x 20 cm