What are the sizes of backpacks?

The size of a backpack is usually expressed in terms of capacity. The capacity of common backpacks is 30L, 40L, 50L, 60L, and 40L is enough for daily use. If it is used for long-distance travel, it is best to choose a backpack over 60L.

Airlines have size requirements for carry-on backpacks, which must meet the boarding size before they can be taken on the plane. But now the implementation standards of different airlines are different, but backpacks need to be checked if they exceed the standard.

Generally speaking, the length, width and height of backpacks are less than 55CM(2 1 inch), 40CM( 15 inch) and 20CM(7 inch) respectively, and the capacity is less than 44L, which is basically within the allowable range of boarding.

How to choose a backpack:

1. Need to consider the purpose of the backpack.

Student Party may care more about the capacity of backpacks, office workers pay more attention to business attributes, sports fans pay more attention to the internal space planning of backpacks, and for women, appearance is the most important. In addition, there are many backpacks for daily commuting and sports, which are also worthy of attention. Therefore, when choosing a backpack, we must first think clearly about the purpose of buying a backpack.

2.？ You need to choose your favorite style.

There are many styles of backpacks. Shoulder bag and shoulder bag are optional attributes. Here, you can choose the style of your backpack according to your own preferences. Those who pursue practicality can choose a shoulder bag, and those who pursue fashion can choose a shoulder bag.

3.？ You need to choose your favorite color scheme.

After the purpose and style are determined, the appearance of the backpack is equally important. Color matching is varied, colorful, low-key and calm, and you can choose according to your own preferences.