The BOPAI Super Slim Laptop Backpacks feature a zippered water bottle holder on the exterior, making it convenient to stay hydrated on the go. Inside, there are additional compartments for smaller items like EDC essentials, while the main laptop compartment is lined with soft flannel to prevent interior friction. The breathable fabric exterior and thickened shoulder straps ensure maximum comfort during wear. Available in sizes to fit 15", 15.6", and 17" laptops, these backpacks are just 3" to 4" thick, making them sleek and compact. Despite their slim profile, they can expand to accommodate larger items like cameras, tablets, and more, making them versatile for various needs.