There are a handful of things a man might wear at a wedding that made a lot of sense eighty years ago, but now...well, at the very least, he probably wouldn't be able to wear it again after the wedding. White Tie situation, most of that stuff will not get worn.
cummerbund and tie included. It only makes sense to purchase these things separately if one has call to attend a lot of formal occasions.
Accessories for All Suits
Which isn't to say there's nothing out there for a man who want to dress with style at a wedding. There are tons of accessories for men to wear, as a guest or as a groomsman, or even as the groom himself. And most of them can be worn again later, with a different shirt, they can be pretty casual.
