Amazon.com: DTTO Travel Laptop Backpack, Water Resistant 。*【Large Capacity & Organized】 23L travel backpack for men and women with a spacious main compartment, tablet compartment, and separate laptop compartment for 15.6 inch laptops or 13-16 inch Macbook. Exterior top pocket for everyday essentials and 2 expandable side pockets for water bottles and umbrellas. Keep your belongings organized and easier to find. *【USB Port Design】This carry-on backpack has an external USB port and a built-in charging cable. It provides a more convenient and safer way to charge your cell phone and electronic devices when you are traveling. Please note that the backpack itself does not have a power supply, the USB charging port just provides a convenient charging channel. *【Quality & Durable Materials】 laptop backpack is made of high-quality water-resistant polyester and nylon with a soft-lined laptop compartment that absorbs shock and keeps your digital devices safe. Specifically designed water-resistant zippers and water-resistant front pockets can protect your belongings from light rain to a certain extent. *【Practical Safety & Flight Approved】A quick access side entrance was added for easy access without opening the bag. The back luggage strap helps you secure the backpack to your suitcase and a hidden anti-theft pocket ensures your belongings are safe. Size: 17.7\"L*11.6\"H*6.7\"D, this travel backpack meets the requirements of most airlines.