Introduction：
Backpack is a bag style that is often carried in daily life. It is very popular because it is easy to carry, frees hands, and has good wear resistance under light load. Backpacks provide convenience for going out, good bags have a long service life and have a good sense of green. So, what kind of backpack is good, and what size is the right backpack? Let's take a look at the buying skills of backpacks.
Workmanship: Every corner and pressing line are neat, there is no off-line and jumper phenomenon, and the workmanship of each needle is very elegant, which is a sign of high craftsmanship.
Material: The materials of popular backpacks on the market are limited, such as nylon, Oxford, canvas, and even cowhide crocodile skin, etc. It can be attributed to the
luxury. Generally, computer backpacks use 1680D double-strand fabric, which is relatively medium to upper, and 600D Oxford cloth is a more commonly used material. In addition, materials such as canvas, 190T and 210 are usually used for relatively simple backpack type backpacks.
Brand: see who's brand is louder, that is, it is more popular with everyone. There are many brands, and not all of them are suitable for you.
Structure: The back structure of the backpack directly determines the purpose and grade of the backpack. The structure of the back of the famous brand computer backpack is more complicated, and there are at least six pieces of pearl cotton or EVA is used as a breathable pad, and there is even an aluminum frame. The back of the general backpack is a piece of pearl cotton of about 3MM as the breathable board. The simplest type of bag type backpack does not have any padding material except the material of the backpack itself.