Choosing the right laptop bag is essential for protecting your device and staying organized. With options like backpacks, messenger bags, and briefcases, factors such as size, material, carrying style, and storage all affect daily convenience and safety. Understanding these elements helps you pick a bag that fits both your laptop and lifestyle. Part 1. What size laptop bag should I get? When choosing the right size laptop bag, the key is to match the bag’s internal compartment dimensions with your laptop’s actual measurements rather than just the screen size. Most laptop bags are labeled to fit common sizes such as 13″, 15.6″, or 17″, but sizing can vary by brand.