noun
show-off bra; intentionally visible bra
Refers to a bra that is deliberately shown through clothing, or the act of wearing clothes that reveal part of the bra as a fashion statement. Casual, modern slang.
彼女は見せブラを意識したファッションを楽しんでいる。
She enjoys fashion that intentionally shows her bra.
あのトップスは見せブラ向きのデザインだね。
That top has a design suited for showing off a bra, doesn't it?