Our Products: As you can see from the product video, the travel carry-on backpack is very good. This is because his workmanship is very good, but more importantly, the materials used are very good and thick. There are many other details that are exclusively customized by us. Design Concept: Simple and elegant business weekend backpack with a 17.3-inch laptop compartment and a waterproof compartment. The main compartment is equivalent to a 40-liter suitcase. There is a private pocket on the back of the 40l backpack for passports and change. . Expandable Space: Open the zipper (increase the width of the backpack luggage by 2 inches), which can provide more storage space. What's more, under normal circumstances, there is no difference in size compared to a laptop bag, and it can be used daily. . TSA Design: This 40l travel backpack is sized to meet the airline's carry-on regulations and can be opened 180 degrees, making it very easy and quick to pass through airport security. This carry-on luggage backpack can also be transformed from a backpack to a suitcase style. 。 Widely Used: Airplane carry-on backpack is perfect for weekend getaways, travel, nursing school and daily use. He is also a great gift for friends, perfect as a back-to-school gift, birthday gift, holiday gift, etc.