Components of formal dress
For men's white tie:
Tailcoat
Formal trousers, (with satin stripes on the left and right sides) which are never cuffed
White pique bow tie
White (black on some occasions) pique vest
White pique-front shirt
Cufflinks and studs
Black patent leather shoes (or, as has been the norm more recently, black dress shoes)
Suspenders may also be worn
For men's black tie:
Tuxedo jacket or dinner jacket
Formal trousers, (with satin stripes on the left and right sides) which are never cuffed
Formal shirt, which may have a wing collar, a standard collar, or a band collar, and may have a pleated, standard, or pique front (or may have a ruffled front)
A bow tie or neck tie
A vest (worn with either a bow tie or a long tie) or a cummerbund (worn only with a bow tie)
Black patent leather shoes (or, as has been the norm more recently, black dress shoes)
Cufflinks and studs
Suspenders may also be worn