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About product and suppliers:
        Alibaba.com offers 7,808 strong backpack bag products. About 35% of these are backpacks, 14% are school bags, and 2% are travel bags. 

A wide variety of strong backpack bag options are available to you, such as internal frame, external frame, and softback. You can also choose from genuine leather, 600d, and nylon. As well as from 50 - 70l, 30 - 40l. And whether strong backpack bag is free samples, or paid samples. 

There are 7,808 strong backpack bag suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of strong backpack bag respectively. 

Strong backpack bag products are most popular in North America, Western Europe, and South America. 

You can ensure product safety by selecting from certified suppliers, including 1,136 with Other, 1,098 with ISO9001, and 435 with BSCI certification.