Most listings accommodate laptops from about 15 inches up to 17 inches. Specific sizes mentioned include 15", 15.6", 16" and 17".
Some backpacks include an external USB power outlet and a zippered battery-pack pocket. Many also list tablet sleeves and organizer pockets designed for chargers, cords and other electronics accessories.
Materials listed include Polyester, 100% Recycled Nylon, 100% Recycled Polyester, Polyurethane and Microfiber. Fabric styles noted are Twill, Woven, Dobby and Novelty.
Warranty lengths vary by listing and include 1-year, 3-year and 5-year limited warranties, with some listings offering a lifetime limited warranty.
Capacities span roughly 14.5 liters up to 45 liters. Representative sizes shown include 14.5 L, 15 L, 19.56 L, 21 L, 22 L, 24 L, 34.41 L and 45 L.
Many listings describe water-resistant or water-repellent treatments and water-resistant construction; some list tear-resistant materials. A few items also include wet pockets for damp items and RFID-lined pockets for card/ID protection.
Most list a padded laptop compartment plus organizer pockets. Common features include tablet sleeves, phone pockets, front zip pockets, pen/key pockets, mesh and zip pockets, water bottle holders, shoe or wet pockets, and in some cases RFID-lined or dedicated media/accessory pockets.
Common travel features are carry-on or personal-item–friendly sizing, trolley/luggage straps for attaching to rolling suitcases, and clamshell or 180° zipper openings for easy security screening. Many also include padded laptop compartments; a few list external USB power outlets with battery pockets.
