1. Before purchasing a backpack, all adjustment belts should be loosened and weight added first, because without weight, it is impossible to know how the backpack feels and whether the adjustment range is appropriate.
2. After carrying the backpack, check whether the arc of the aluminum strip is consistent with the curve of the back, if not, check whether the aluminum strip is flexible; If it is flexible, the aluminum strip will naturally bend into a curve that matches the back after a period of use. Are the backpack and back contacts comfortable and breathable?
3. The connection between the shoulder strap and the backpack must be 5-8 cm lower than the shoulder, and the gap between the shoulder strap and the backpack should be small. The chest strap can adjust the width of the shoulder strap to open and close in the chest, and make the shoulder strap more comfortable on the shoulder, and prevent the backpack from shaking.
4. When the backpack is adjusted to the most suitable position, should check the head line of sight? Can I look up without hitting the top of my backpack? Can I still see the sky when I put on my helmet?
5. The adjustment range of the shoulder strap must be consistent with the length of the back in order to make the center of gravity fall in the ideal position; The hip strap has to fit over the hipbone. When carrying the backpack, you should also be able to see the buttocks and legs from behind, smaller women should pay special attention to this, do not carry the backpack from the back only to see the backpack and the calf, which is very wrong and dangerous.
In short, the good shoulder system is adjusted properly, and most of the weight can be transferred to the hip and hip more than 60%, so that different muscle parts can share the weight, so that your shoulders will be much easier and more flexible. Then you may have enough energy to enjoy nature.
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