When using a backpack, the amount of pressure is less than other types of bags. For this reason, most people show more interest in buying backpacks compared to other bag models. Now let's check the features of standard backpacks:
1- Gender:
Bags can be made of linen, fabric, polyester, tarpaulin and leather. Each of these types has its own advantages; For example, cotton bags have many fans due to their lightness and strength as well as more variety of colors. Some also like leather. Linen and leather do not match tarpaulin and polyester in terms of color variety. Non-linen cloth bags also have a good variety of designs and colors, but their materials are softer and may not last as long as other materials.
1- Size:
One of the features of a standard backpack is the size of the backpack, which should be chosen according to the size of the person. We recommend that you be careful when choosing the size of the backpack and choose it according to your needs and carrying capacity. A large backpack is not necessarily the best backpack for you. It is better for petite people to use more delicate backpacks with shorter straps. Also, tall people should not use backpacks with short straps. Because in this case the backpack will not be placed in the correct place. In addition, you should pay attention to the amount of items you intend to carry. The characteristics of a suitable backpack for climbing are different from the characteristics of a travel bag or a student backpack.
3- Another feature of the standard backpack for students is that it should be placed about three centimeters higher than the person's waist line after wearing it.
4- During use, the size of the straps should be adjusted so that it does not fall below the area of the last vertebra of your back, which is parallel to the navel line in the back area, and does not cause the shoulders to turn to the side. go back.
5- The backpack should have two thick straps and a thin strap should not be used to carry them. A thin strap causes damage to blood vessels and nerves. If the use of thin straps continues, skin discomfort and chronic nerve pain will come to the person over time.
6- Hanging the backpack from one side will gradually cause damage. It affects the spine and body tilt. Especially this condition is very traumatic in children and teenagers who have growing organs; Therefore, everyone should know how to properly carry school bags and backpacks and follow these simple principles.
7- One of the important points when using a backpack is that its straps should be adjusted symmetrically. Asymmetry disturbs the balance of the body.
8- The width of the backpack straps should be at least 5 cm and should be placed on the chest when in use. Inside some bands, an air capsule or a special pad is embedded for the health of the bones between the scapula and the neck.
