double-breasted
adjective uk/ˌdʌb.əlˈbres.tɪd/ us/ˌdʌb.əlˈbres.tɪd/
（上衣或外套）双排扣的
A double-breasted jacket or coat has two sets of buttons and two wide parts at the front, one of which covers the other when the buttons are fastened.
Compare: single-breasted