1. Understand the purpose and ​location of the new backpack
All straps should be loosened and weights should be added, the pack back straps should be the longest and only need to be tightened for later adjustments. Because if there is no weight, it is impossible to know the feeling of carrying the backpack and whether the adjustment range of the carrying is appropriate. Generally add about 10 kg.

2. Put on the backpack and fasten the lower shoulder straps
Simply estimate the length of your back, and then adjust the shoulder straps so that the inward curve of the straps is parallel to the underarms, and the distance between the straps and the backpack should be at least 5cm. Also adjust the back straps of the pack so that the pack is in the highest position, above the shoulders.
3. Tighten the belt
When the thigh is raised to a 90-degree angle with the body, the bottom of the belt should be level with the thigh, so as to ensure that the belt will not hinder the movement of the legs when climbing. At the same time, when traveling normally, the weight of the backpack is distributed from the shoulders to the legs through the pelvis, reducing the burden on the body and saving physical strength.