As the hats are starting to accumulate, I'm now faced with the dilemma of storing them all in good condition. As a stop gap, I've been using pedal bin liners, but these won't let the hats breathe, and may potentially lead to mould issues long term. I'm not overly concerned about caps, as they can all live in a drawer. As to the brimmed hats, would cotton pillowcases make for good enough dust bags? (I'll not be going the box route, as they'd probably cost more than the contents ) Are there other breathable bag options that I'm unaware of, or reasons to not use any cotton bag? For reference, I have two leather hats, two wool felt, and four cotton, that I'm looking for simple storage issues for.