Versatile combination: 4 compartments in total. 1 separate laptop compartment, 1 main compartment and 2 front compartments provide versatile space for your laptop, laptop accessories, A4 folders, books, clothes and more. LAPTOP PROTECTION: The special compartment 15.6 inch laptop sleeve with elastic straps provides optimal protection for your laptop. The tablet compartment is suitable for a 13.3-inch laptop and a 12.9-inch iPad, making it a great idea for people with multiple electronic devices. Travel Ready: There is a luggage strap on the back of the backpack, which can securely attach the backpack to the handle of the rolling case for convenient travel. The hidden pocket on the back adapts perfectly to the user's body. It's hard to steal your valuables without feeling it. Perfect for laptop backpacks, school bags, travel backpacks, work bags. USB Charging Ports: The backpack comes with an internal charging cable and an external USB port, providing a more convenient way to Convenient and simple to charge your devices. There is no need to hold the power bank in your hand, which makes life easier. Durable and waterproof: The backpack is made of high-density nylon fabric that has been treated to make it stronger and waterproof. Light weight: 0.9kg. Dimensions: 30 x 45 x 18 cm. Great gift for you, your friends and your family.