Millie Bobby Brown's Bra Is a Flirty Take on the Cottagecore Trend

Wearing a coordinating red studded crop top, hot pants, and jacket by Annie's Ibiza, plus a pair of cowboy boots designed by Terry de Havilland.

Millie Bobby Brown stepped out in a chic black bakerboy cap, Dr. Martens boots, and a mix of stylish plaid — a blazer-and-skirt set by Antonio Berardi — as she promoted "Godzilla: King of Monsters" in London in 2019.

Millie Bobby Brown was hard to miss in this red Alice + Olivia statement coat and Roger Vivier heels for the Pandora Me launch in 2019.

The "Stranger Things" actress wore a sporty black skirt, black top, and black-and-white platform creepers.

In 2019, Millie Bobby Brown was a vision in white Givenchy Haute Couture as she arrived at the "Godzilla: King of Monsters" premiere in Paris. She finished the look with a matching pair of white Givenchy sling-back heels.

Millie Bobby Brown chose an all-black Ralph Lauren look, which paired a structured leather jacket with a mock-neck top, long pleated skirt, and sunglasses, for a day of radio interviews in 2019. To finish, she opted for colour contrast in light-pink ankle-strap sandals.

Millie Bobby Brown layered a dark denim Calvin Klein dress over a ribbed orange turtleneck for her Calvin Klein Collection fashion show appearance in 2018.

In 2018, Millie Bobby Brown took inspiration from pep rallies, pairing a purple velvet varsity-esque dress with a white leather jacket at the Calvin Klein Collection fashion show.

Millie Bobby Brown kept it casual — and warm — in a slick black Moncler puffer, cuffed denim jeans, and Louis Vuitton sneakers while out and about in 2018.

Millie Bobby Brown toughened up her blush Calvin Klein halter dress with shiny patent-leather Prada boots and round sunglasses — a perfect mix of feminine styling and edgy accents.

Spotted outside "The Late Show With Stephen Colbert" in 2017, Millie Bobby Brown wore a structured navy blazer short set and chunky lace-up black boots.

In 2017, during a visit to "TRL," Millie Bobby Brown wore a matching Giamba printed set with black ankle boots and Hollywood-worthy sunglasses.

In 2017, Millie Bobby Brown made a voluminous ruffle statement with a tri-tone Gucci dress and matching Gucci heels.

Millie Bobby Brown mixed prints and textures in 2017, styling a gold, sparkly Rodarte bomber jacket over a pink crop top and printed wide-leg trousers.

Millie Bobby Brown struck all the right sporty notes in this long-sleeved striped dress and sneakers combo, both by Louis Vuitton.

Wearing Red Valentino.

Wearing Burberry.

Wearing Coach.

Wearing denim overalls.

Wearing Burberry.

Wearing an embellished ballgown with Converse.

Wearing a classic trench coat.