1. For large backpacks with a volume of more than 50 liters, when placing items, put heavy objects that are not afraid of bumps on the lower part. After putting them, it is best that the backpack can stand alone. In the bag and close to the side of the body, so that the overall center of gravity will not fall back.
2. There are skills on the shoulders of the backpack. Put the backpack at a certain height, put your shoulders into the shoulder straps, lean forward, and stand up on your legs. This is a more convenient way. If there is no high place to put it, lift the backpack with both hands, put it on one knee, face the strap, control the bag with one hand, and grab the shoulder strap with the other hand to turn around quickly, so that one arm enters the shoulder strap, and then the other arm Enter.
3. After carrying the bag, tighten the waist belt so that the crotch bears the heaviest force. Buckle the chest belt and tighten it so that the backpack does not fall back. When walking, hold the gap between the shoulder strap and the backpack with both hands The body is slightly leaned forward, so that the gravity is actually on the waist and hips when walking, and there is no pressure on the back. In case of emergencies, the upper limbs can be handled flexibly. When passing rapids and steep sections without protection, the shoulder straps should be loosened, and the waist belt and chest belt should be opened so that in case of danger, the person and bag can be separated at the fastest speed.
