For the wedding day: come in your comfiest shoes and best outfit (as long as your best outfit isn’t a white dress).
Men are welcome to wear a morning suit if they find it fun and comfortable, but it is absolutely not a requirement. A summer suit will be perfect.
You might like to wear some blue and/or silver and/or incorporate some vintage style for this slightly swing and jive inspired wedding.
For the recovery: come as you are. We won’t judge (aloud).