Example
Matching suit jacket and suit pants as well as dress shoes are required along with a tie or bow tie. For an elevated cocktail look we ask for darker suit colors such as grey, navy or black. No khakis, chinos, jeans or sneakers please. Further suggestions can be found here: https://theblacktux.com/blogs/style/mens-cocktail-attire
Example
For a more formal cocktail attire look we encourage long dresses or jumpsuits as seen in the example above. We kindly ask for no sundresses or rompers. More information can be found here under formal cocktail attire guidance: https://www.theknot.com/content/cocktail-wedding-attire