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Use "overbust" in a sentence
"But a real custom made overbust corset is an expensive thing."
"Ladies, if you're game, you won't be disappointed. these also offer far more support for the bust (if overbust stays are made/purchased) because the shoulders and upper back are not carrying the load."
"Here's a dumb question of my own: in vintage patterns, is the "bust" number the overbust number, or the bra size as it is in, say, slip sizing?"