Tuxedo

A tuxedo (American English) or dinner suit or dinner jacket (British English) is a semi-formal evening suit distinguished primarily by satin or grosgrain facings on the jacket’s lapels and buttons and a similar stripe along the outseam of the trousers. The suit is typically black (though may be midnight blue) and commonly worn with a formal shirt, shoes and other accessories, most traditionally in the form prescribed by the black tie dress code.