Keeping Mulberry leaves fresh?

[Crush da Baum]

Does anyone know anyways to keep leaves fresh while shipping. I am running into a problem there.

 

[Happytort27]

I usually fold wet paper towels over the leaves and seal them in a plastic bag. Make sure to spread them out. Although, I don’t know if it’ll work through shipping because I normally use the leaves 2-3 days after sealing them.