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About product and suppliers:
        Alibaba.com offers 14,091 big backpack products. About 50% of these are backpacks, 3% are diaper bags, and 2% are travel bags. 

A wide variety of big backpack options are available to you, such as softback, external frame, and internal frame. You can also choose from nylon, canvas, and 1680d. As well as from day backpack, camping & hiking, and hunting. And whether big backpack is 30 - 40l, or 50 - 70l. 

There are 14,091 big backpack suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of big backpack respectively. 

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

You can ensure product safety by selecting from certified suppliers, including 2,721 with Other, 2,170 with ISO9001, and 576 with BSCI certification.