[Waterproof Material]The travel backpack is made of waterproof and durable polyester fiber, and the shoulder straps and back are made of breathable mesh padding to keep you cool when you carry it for a long time. And it's tough, sturdy, and won't fade. The fixed buckle on the chest makes the backpack not easy to slide, making it easier for you. [Main Pocket and Front Pocket]The carry-on Daypack has 2 large pockets. Can hold your books or travel essentials. The main pocket is designed with 5 internal pockets, separate zippered computer compartment and mobile phone power bank compartment, which can store laptops and mobile phones up to 15.6 inches, and better protect them from bumps. [Separate Shoe Compartment and Wet Pocket]The women's Rucksack is equipped with wet pockets, which can help you separate wet clothes or towels after traveling, swimming or exercising. There is a separate compartment at the bottom for shoes, dirty gear storage. The shoe compartment has two ventilation holes for ventilation. [Anti-theft multifunctional backpack]There is a zipper anti-theft pocket on the back of the bag, which can hold valuables such as mobile phones and iPads, and the left USB charging port is convenient for you to charge your mobile phone while walking. Versatile Backpacks: Hybrid Backpacks (Backpacks, Duffle Bags, Shoulder Bags, Travel Bags, College Bags). [Dimensions]The size of the backpack is 12.20 x 6.69 x 16.5 inches (31*17*42CM); Weight: 2.2lbs/1kg. The capacity is 35L. You can take it on the plane.