Some members of the marriage party, sometimes the Bride's father or Pa of the Groom may already have a formal jacket, so be ready to work with that. All of the Tuxedos should be the same colour, typically black - no blue tuxedos please ( remember Steve Martins personality, Mr Banks as the FOB in the movie Dad of Bride. Most tux shirts come with French handcuffs ( requiring cufflinks ) and they have studs rather than buttons on the shirt. If you make a decision to purchase it used be certain to check the jacket stitching from top to bottom. A good dry cleaner can make your tuxedo look as good as new.
Since 5 to 6 groomsmen will get their tux from the same shop, you could be ready to broker a deal and get your t uxedo free. The tuxedo shop owner wont be disgusted if you try and get a fair deal. Getting your tuxedo for free could shave 1 to 2 hundred greenbacks off your marriage budget. The groomsmen were measured a few weeks before. If you have questions on any of this, ask the sales person at the tux shop and they'll help you. Nonetheless the bride may ask the men in the marriage party to coordinate on colour of the vest, cummerbund or tie.