I'm preparing a hiking bag I can have at my house so that I can quickly take it with me in an emergency scenario. It will have a whole bunch of powder food, but the container it comes in is large and awkward.
I'm looking for something similar to a camelbak that I could transfer this powder into. I'm having trouble finding a flexible material that won't break and is easily accessible when I need to remove the contents of the bladder. I've looked at a few canteens, but ideally there would be a bigger mouth to remove everything from.
Any tips would be greatly appreciated. Thanks!