... The Weber bags are resealable.
yes and so are some other ones
Love my Kingsford Kaddy! It's one of my critical grilling accessories.
I don't place the bag in it though, as some pictures will show. I just dump the charcoal into it. One large bag = full container. You wind up with charcoal dust at the bottom in this way, but I don't care.
It's easy to tilt and pour into the chimney, and mine has never leaked even a drop, when left outside.