What size does Canon 600d camera bag fit?

Theoretically, as long as the camera can be put in, the size of this bag is appropriate.

In fact, what really determines the size of the camera bag is the size of the lens and the number of lenses. If you have a huge telephoto lens and other lenses at the same time, you need a big camera bag to hold the camera ... at this time, the shoulder bag is not enough, you need a shoulder bag.