About product and suppliers:
            4,572 backpack stock products are offered for sale by suppliers on Alibaba.com, of which backpacks accounts for 29%, school bags accounts for 4%, and travel bags accounts for 1%. 

A wide variety of backpack stock options are available to you, such as zipper, zipper & hasp, and hasp. You can also choose from 20-35 litre, below 20 litre, and 30 - 40l backpack stock, as well as from unisex, female, and male backpack stock, and whether backpack stock is polyester, oxford, or nylon. 

There are 4,558 suppliers who sells backpack stock on Alibaba.com, mainly located in Asia. The top countries of suppliers are United States, China, and Hong Kong S.A.R., from which the percentage of backpack stock supply is 1%, 99%, and 1% respectively.