Carry on Backpack, 45L Expandable Large Travel Backpack with 。?EXPANDABLE & LARGE CAPACITY: 45L Carry on Backpack. This Carry on Backpack with an expandable feature offers you more packing capacity than the usual Carry on Backpack The spacious main compartment holds 3-6 days of travel clothing and accessories. Built-in elastic bands to keep your items from falling out and being organized. The front compartment with many pockets, and pen pockets, make your items organized and easier to find ?CARRY ON BACKPACK FLIGHT APPROVED: Simply remove the hide-away shoulder strap in the back panel, then it can be easily converted into 2 ways of use: wear it as a Backpack for hands-free transportation; carry it by top or side handles as a carry on bag. Travel Backpack for the way you want to go. This suitcase Backpack is specially designed for plane travel and can be opened at 180 degrees like a suitcase, which can quickly pass through airport security and meets the boarding requirements ?STURDY & GREAT QUALITY: Made of high-quality water-resistant and sturdy polyester fabric with metal zippers, this weekend Travel Backpack is built for secure & long-lasting usage on every day & flying trips. This travel bag serves you well as a cute Travel Backpack, Business Backpack, overnight Backpack, weekend Backpack, luggage Backpack, and travel safe Backpack