Basically if you have a small green CN22 customs label on it then it is almost guaranteed to get through most customs, however, if you don’t have a declaratiion sticker on it, then it is very likely it will be checked.
I usually write socks or gloves etc on it – just make sure that what you write tallies up with the weight because if customs think its “iffy” then it will be opened.
Any place that you are worried about or if you are sending something a bit more taboo than usual, just make sure you have no true reference to who you are. It is unlikely that they would bother to trace it back, but with the explosion of new sellers lately, small packets might start to become targeted to routine checks.Â
Whether sending panties is actually illegal or not, nobody knows, its a grey area – sending “filth” in the mail is illegal but does a worn panty come under that catagory? I guess every country has their own regulations anyway.
Love cinds x