The bloggers at Busts4Justice posed the question: must underpants match the bra? Are non-matching underpants a faux pas? My answer to both questions is an unequivocal “no!”
I was really concerned about my underpants matching my bra in junior high, but I got over that right quick. What I want in a bra for everyday wear is different from what I want in underpants. There’s absolutely no reason they must match. Of course, if you really like matching all the time, and you can afford a collection of underpants to match your bras (no easy feat for those of us in large cup sizes) then go for it. It’s a matter of personal choice.
I live in a hot, humid climate, so for everyday wear, like with jeans or trousers, I stick with cotton underpants. Under skirts, I prefer boyshorts, as they add modesty but don’t show a pantyline (also, I just love boyshorts.) I choose my daily bra according to my needs that day, usually related to what shirt I am wearing, and where that bra is in rotation.
As for underpants, I buy them in colors I like, which usually means a lot of basic black, and then a riot of whatever other colors are available in my size the day I shopped.
I would especially never say that a person’s personal choice about underwear is a faux pas. There is no etiquette about matching underwear, no standard social convention. The reason for this, of course, is that your underwear is your own business!