In the main compartment can hold 2 thick and 1 thin ring folder. Then there are 3 more subjects. In the second compartment loose fit 2-3 1.5 liter bottles. Perfect backpack for sports, shopping, University / School or as an excursion bag. For camping, I would rather recommend an army backpack ... you have to look at individually, depending on use. Hopefully keep the seams, then everything is fine!