Amazon Basics Canvas Laptop Backpack Bag for up to 15 Inch Laptops – Black Price: $30.74 (as of 10/04/2023 00:36 PST- Details)

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Backpack with padded compartment fits most laptops up to 15.6 inches. (Laptop Compartment Dimensions: 13.4 x 11.8in x 1.5in)
Roomy internal compartments for books and folders; external side pocket with zipper keeps smaller items handy and secure