Amazon.com: DUSLANG 17 Inch Laptop Backpack for Travel Water 。?Expandable and Large Capacity: EMPSIGN Womens backpack has a unique expandable feature that gives you additional packing capacity. The backpack features a spacious main compartment, as well as a dedicated laptop compartment. The main compartment is perfect for storing keys, clothes, cameras, umbrellas, etc., perfect for travel enthusiasts. This versatile backpack meets the airline\'s personal item requirements, facilitates airport security and is conveniently placed under the seat. ?Hidden Pockets and RFID Design: Laptop backpack has multiple hidden pockets so you can easily organize your belongings. At the same time, the backpack is equipped with an RFID blocking part to prevent RFID credit card information from being read and copied. No more worrying about data being stolen by RFID scanners. ?Comfy Carrying: EMPSIGN has designed a luggage strap on the back of the backpack so that business travelers can strap it to their suitcase for easy carrying. Soft shoulder straps provide extra comfort. The double handle with leather buckle ensures easy portability and makes it easier for you to get through the airport. ?USB Port Design: The laptop backpack is made of waterproof polyester and scratch-resistant materials, while the backpack has good air permeability and heat dissipation, making the backpack more comfortable. Sturdy zipper and sturdy stitching that can withstand the demands of travel.