Main Compartment: The primary storage space of a backpack is the main compartment, which can vary in size and often has a zippered closure. It's where you can store the bulk of your belongings.Pockets and Compartments: This backpack have additional pockets and compartments, both inside and outside, for organizing and segregating items like laptops, books, water bottles, pens, and smaller personal items.Laptop Compartment: Backpacks come with a dedicated padded compartment designed to protect laptops and other electronic devices.Compression Straps: Adjustable compression straps on the sides or front of the backpack help you cinch down the load for better stability and to reduce bulk when the bag isn't fully packed.