7 pocket bum bag

Hi there iv got a stoney creek 7 pocket bum bag that has worn out I was wondering what to replace it with I have a pikau that I carry for when I get an animal iv been looking for a bit but havnt found anything that's jumped out out at me I have been thinking bot going to a the 18l stoney creek pack but I realy like the bum bag set up any one get any ideers on what works for them and I mite not know of all the options out there it dose need to be packable tho.

Could get the stoney 2in 1? Its a bum bag that folds out to a 27 or30 litre pack. I have one but never use it as a bum bag