
Attending the event in Gassin, France, Roberts arrived in a floor-length black dress. The strapless gown included folded-over fabric at the top, adding a chic layer to the look. The dress was also cinched at the waist and featured a voluminous structured train and a slit along the side. Contrasting the dark dress were her blonde waves, which she wore out.

Going for a timeless monochrome black aesthetic, Roberts selected Alexandre Birman’s Clarita Bell Satin Slingback Pumps for her footwear. With a leather sole and leather lining, the Italian-made shoes featured a bow affixed to the vamp, adding a dainty accent to the look. The heel measured around four inches and sloped into a small square base, contributing to the curved silhouette of the shoe. Typically retailing for $795, the shoe is currently on sale from Alexandre Birman and Saks Fifth Avenue for $318. A go-to for countless dressy occasions, slingbacks have been a reliably fashionable style for decades and are definitely here to stay.

Roberts’ wardrobe includes several staple items like black slingback pumps; she owns a pair of black suede pumps with an enclosed heel from Manolo Blahnik, for example. She often keeps it classic in black or white outfits, or a mix of both, and finds footwear to complement that timeless aesthetic — be it white loafers or black slingbacks from Tory Burch. See more of her distinctive style below.