There are austere and classic models, more sophisticated models and very modern and up-to-date models. Laptop backpacks, although varied in design, tend to coincide in some features: several pockets of different sizes, a padded interior to offer protection to the computer and also the straps are padded to be comfortable on the shoulders. They are usually in grey, black or blue, sober tones to easily match the image of each brand and to make it an elegant office material. On the back, which is attached to the back, some models have breathable material, which avoids excessive sweating and the anti-aesthetic frames on the T-shirt or shirt.