Plan to look your best, but not fussy. Patterned shirts with a collar, polos, sundresses, and slacks are all good choices. Ties are unnecessary. The event is outside on gravel and grass, so choose appropriate footwear.

In short, cocktail attire is fancy party clothes. It should be less formal than a ball gown or tuxedo, more formal than jeans, and more splashy than what you wear in an office. Bolder fabric, color, pattern, and accessory choices are encouraged. Wear something that makes your feel elevated and fun. Non-eurocentric formal attire is absolutely welcome if appropriate. If you are planning on walking from the ceremony to the reception, comfortable shoes are encouraged.