For large backpacks with a volume of more than 50 liters, when placing items, put the heavy objects that are not afraid of bumping on the lower part. After putting them away, it is better that the backpack can stand alone. If there are many heavy objects, put the heavy objects evenly in the bag. And close to the side of the body, so that the overall center of gravity will not fall back.

There are skills on the shoulders of the backpack. It is more convenient to place the backpack at a certain height, enter the shoulder straps with both shoulders, lean forward, and stand up on the legs. If there is no place to put it, lift the backpack with both hands, put it on one knee, face the strap, control the bag with one hand, grab the shoulder strap with the other hand and turn quickly so that one arm enters the shoulder strap, then the other arm Enter.

After carrying the bag, tighten the waistband so that the crotch is subject to the heaviest force, buckle the chest strap and tighten it so that the backpack does not have a feeling of falling behind. When walking, use both hands to adjust the adjustment between the shoulder strap and the backpack. Belt, the body is slightly forward, so that the gravity is actually on the waist and crotch when walking, and there is no pressure on the back. In case of emergencies, the upper limbs can be flexibly handled. When passing through rapids and steep sections without protection, the shoulder straps should be loosened, and the waist belt and chest strap should be opened, so that in case of danger, the bag can be separated as quickly as possible.