While guests invited to a black-tie event should heed the above advice, women headed to black-tie optional affairs have more leeway to wear cocktail-style dresses or even dressy pantsuits, while men can step out in a regular suit (a still-dark, but less formal shade, like charcoal or navy, is acceptable)
Team it with our pencil skirt or tapered trousers for a sophisticated office ensemble
Best Overall Summer Wedding Guest Dress: ASTR The Label Blythe Floral Plisse Midi Dress, $164 Best Formal Summer Wedding Guest Dress: Lulus Floral Ruffled Tiered Maxi Dress, $118 Best Cocktail Summer Wedding Guest Dress : ELOQUII Pleated Ruffle Neckline Midi Dress, $200 Best Affordable Summer Wedding Guest Dress: Birdy Grey Isla Dress, $99 Best Splurge Summer Wedding Guest Dress : Reformation Anaiis Silk Dress, $398 Black-Tie and Formal Summer Wedding Guest Dresses Summer wedding guest dresses for a black-tie or formal wedding should feature floor-length skirts and elegant fabric like silk, chiffon or organza
Or scroll down for a few similar that I found to recreate the look