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Mens rules for dress codes are straightforward when choosing what to wear to such events

Easy-to-wear design transitions effortlessly from day to evening

Mixing things up with a slightly (though intentionally) mismatched jacket and trousers is a way to maintain clean line and sense of cohesion you get from a suit, while knocking some of the formality out of it

"I approach semi-formal dressing knowing that it should still have a formal element," celebrity stylist Lindsey Dupuis tells SELF

It can be found in silk, polyester, and acetate varieties with good examples including bridal gowns, celebrity dresses, and prom dresses

Stick to darker, richer colors navy, charcoal, burgundy, and forest green