It may come as a surprise to some of youse that the terms are now loosely used and may be more of a figment of some marketers imagination than an accurate reference to source and / or quality.
That is, these days, to put it gently, the fluff from my belly button may be just as much "Egyptian or Sea Island" cotton as your expensive shirt.
Doesn't the ACCC check to make sure it is Egyptian Cotton? So the consumer like me isn't getting done over?
So in all likelihood, R&B shirts are probably milled and dyed in China? I am telling you. Egyptian cotton feels different!