What should I pay attention to when purchasing outdoor backpacks?

I didn't know much about outdoor products earlier. I always feel that foreign students carrying big bags and small bags at school seem crazy. But in the past two years, things have changed. When you see that other places are constantly attacked by natural disasters, and you personally realize the inconvenience of playing outdoors, then you will think like me, whether you should prepare a set of outdoor equipment at home. I think it's not only for going out to play, but also for escaping and saving lives when disasters come.

My parents bought a military tent and an air cushion in an outdoor shop earlier, but last year I bought a small outdoor tent that can resist ice and snow and some small things that can prevent rain. I am learning a good quality sapper shovel recently. Maybe some people will say what does this have to do with outdoor bags? It's a long story To put it simply, sappers' shovels can be inserted into outdoor bags, and small tents and kettles should be placed in the interlayer of the bags. Therefore, in addition to being strong enough, outdoor backpacks should also be waterproof. If necessary, they should not be too heavy as life-saving equipment.

As for shopping, according to my novice experience, as long as the imported professional outdoor brand products are not cheap and you can afford them, they can generally meet your needs. And some low-priced, really beautiful domestic "tail goods", although they look similar to imported goods, are far from good quality. And most importantly, seemingly painful expenses can usually save your life in a real crisis. So, don't be stingy when you buy it outdoors.