Looking for a backpack that can handle work, school, and travel? Check out this KEOFID bag. It's a 17-inch backpack (specifically 17x11.2x6.7 inches), so it'll fit most laptops up to 15.6 inches, plus a tablet sleeve for a 10.4-inch device. It's made from tough, water-resistant 1680D polyester that feels durable and has a nice soft-touch coating on the front. The big feature is the external USB port – you plug your own power bank into the cable inside the bag, and then you can charge your phone through the port without unzipping anything. Super handy for travel. There are tons of pockets: a main compartment with organizers, a front zipper pocket, and even two zippered side pockets for water bottles or an umbrella. The back and shoulder straps are padded and breathable to keep you comfortable, and there's a luggage strap on the back to slide it over your suitcase handle. Whether you're a student, a commuter, or a weekend traveler, this backpack has the space and smarts you need.