waistcoat, vest, weskit = kamizelka

Difference Between a Vest and a Waistcoat - He Spoke Style

Source: http://hespokestyle.com/mens-style-advice/difference-between-vest-and-waistcoat/

kamizelka

English sentence and Polish translation

He pulled a handkerchief from his waistcoat pocket. = On wyciągnął chusteczkę z kieszeni kamizelki.