Hello, TB people!
I was recently taking my Aeronaut 30 on a bus, and as one does, I flipped it over and used the slightly rigid bottom of it as a make-shift table. I enjoyed a delicious hamburger, but upon finishing my meal, I noticed some grease had leaked onto the material. It's not the end of the world, but I don't want grease rubbing against my clothing as I use the Aeronaut, so it needs a wash.
Usually for grease stains, Dawn dish soap is my go-to. My concern however is that it might also breakdown the weatherproof chemicals applied to my Aeronaut 30 to repel water.
Suggestions?
EDIT: To clarify, this is the halcyon material, not ballistic nylon.