A naturally well packed vulva, whereupon no part of the labia (majora or minora), clitoris, or vestibule of the vagina can be seen.
Guy #1 at strip club: "Dude! Check out that hot single mom working the brass pole! She is so hot and what spectacular containment!"
Guy #2 at strip club (me): "Yeah, she is hot, but I prefer a nice set of ham or roast beef meat curtains."