How to answer the question of how much the bag can bear?

That depends on what kind of bag it is.

If it's a rucksack, thirty or forty pounds of good quality is no problem. If it is a lady's handbag, it can generally bear about 20 kg. If it is an oversized travel bag, it is generally no problem to carry 30-45 kilograms.

The carrying capacity of human beings is relatively poor, but it can't compare with ants or horses. Generally speaking, for teenagers in the growth and development stage, the load of backpacks should not exceed10% of their body weight; For adults or women with average physical fitness, the backpack load should not exceed15% of the body weight; Even people with good physical fitness can't carry anything more than 20% of their weight in their backpacks.