This is one of the best bag ever for your cajon: just put the box inside, close the zip and go where you have to go without worrying for impact damages because the quality of Gewa bags is there: nice padding, heavy duty stitching, great quality materials... Simply trustworthy!
You can bring it with you in two ways: by holding the handle or use the shoulder straps as a backpack.
The only bad thing is there is no pocket for carrying around other small items like percussions etc... This feature would be great but overall the bag is absolutely perfect.