Watertight doesn't mean sealed for emergencies only. I have a small Pelican case that is plenty watertight but is also an EDC item. If I need something from the box it's available. I keep some of my FAK (4x4's and other flat items) in a vinyl pouch that's also watertight and again, if I need it I open it up, it closes just as easy. I consider that to be easy access.
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Better is the Enemy of Good Enough.
Okay, what’s your point??