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An Underwire bra also wired bra or underwired bra is a bra Style that has a wire under the cup section in a bra that provides added support and lifts to the Women Breast.

An underwired bra is the lightest way to provide support. Without underwire, the weight of one's breasts will be transferred to the shoulders; that's why after wearing a non-underwired bra all day (a.k.a., a lounge bra) one can have shoulder pain. (citation needed)