How many liters is an average school backpack?

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Tags

1. #larger
2. #liter
3. #essentials
4. #clothing
5. #backpack
6. #range
7. #usually
8. #liters
9. #while
10. #smaller
11. #extra
12. #carry
13. #sized
14. #hikes
15. #daypacks
16. #water
17. #sufficient