As the long-hailed queen of quiet luxury, Sofia Richie Grainge knows her way around a key accessory to elevate any minimal look.

Last week, we saw Richie Grainge bring her considered style sensibilities to Monaco for a friend’s wedding, modeling the perfect black tie wedding attire. She opted for an azure silk georgette Schiaparelli dress in a brilliant blue, fastened with a gold clasp at the neck and accessorized to boot: Gold embellished black sandals, opulent chunky earrings, a gold Tiffany & Co. bone cuff by Elsa Peretti, and to finish, a petite Hermès Kelly Cut bag.

And as it turns out, Richie Grainge and her husband Elliot Grainge have extended their stay in the South of France, spending quality time with their family at Eden Roc Hotel, a luxury hotel in Cap d’Antibes.

As you can expect, Sofia Richie Grainge kept it casual but refined: She wore a red swimsuit with a scoop neck and white piping, with comfy pull-on navy trousers. For accessories, she wore The Row’s red and black sandals—the summer shoe of the moment for every it-girl in the know—as well as black oval sunglasses, Tiffany gold bracelets, and a chunky watch. The key piece, though, was her black and white geometric bandana—an easy adornment that acts as a chic sun protectant. It’s also so very holiday a la Francais, recalling the likes of Audrey Hepburn, Brigitte Bardot, or Jane Birkin’s summering attire.