do you have kohl's in your area?
you can find them there.
but since they're really good quality backpacks, they're usually a little bit more expensive than other ones.
i ordered mine online and it came in a week. jansport.com. the cheapest ones are like 60 bucks. i got a nicer one because i needed the room and it was 100. depends on the bag, it says online and has a sizing guide that shows how many books or binders the bag can fit well.