About product and suppliers:
            663 base backpack products are offered for sale by suppliers on Alibaba.com, of which backpacks accounts for 10%, shopping bags accounts for 8%, and school bags accounts for 2%. 

A wide variety of base backpack options are available to you, such as 36-55 litre, below 20 litre, and 56-75 litre. You can also choose from softback, laptop backpack, and backpack base backpack, as well as from pp base backpack

There are 664 suppliers who sells base backpack on Alibaba.com, mainly located in Asia. The top countries of suppliers are India, China, and Hong Kong S.A.R., from which the percentage of base backpack supply is 1%, 96%, and 1% respectively.