noun
placket; facing
Refers to a placket or facing on clothing, such as the front opening strip on a shirt or the folded-back edge of a garment. A somewhat specialized sewing term.
このシャツの前立てはボタンが隠れるデザインです。
The placket on this shirt is designed to hide the buttons.
前立ての縫い方を習いました。
I learned how to sew a facing.