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Here are key missteps to steer clear of: Regular business suits

Black-tie optional is a dress code often seen on invitations to events, indicating that guests have the option to wear black-tie wedding guest attire, typically a tuxedo for men and an evening gown for women, but it's not required

You can almost certainly rule out jersey, knit, cotton, corduroy, flannel, linen, denim and other distinctly casual, day-time fabrics

A double-breasted suit obeys all the rules of black-tie dressing but feels fresh and modern

We'll send you a fabric color swatch card for the dress you're interested in, so you can browse through all the available color options and choose the one that's closest to what you have in mind