Sydney Sweeney pairs a cardigan with lace underwear in Australia photos

Sydney Sweeney is keeping things squeaky clean in Australia.

The actress, 28, posted a carousel of vacation and set photos on Instagram Sunday captioned “a little aussie dump,” including a bathroom mirror selfie taken mid-toothbrushing.

She wore her Syrn brand’s gray Keepsake cropped cardigan ($59) with the label’s lace-trimmed Nap Time mid-rise bikini ($22).

Sweeney has been her own most reliable model since the Jeff Bezos-backed line debuted in January. Earlier this month she posted a steamy behind-the-scenes clip in a white lace halter bodysuit, then modeled a pistachio green bralette and boyshorts from the brand’s Small Town Girl drop.

Sweeney has spent the summer in Queensland filming Netflix’s live-action “Gundam,” and the trip has clearly come with downtime.

One video showed her driving bumper cars with co-stars Gemma Chua-Tran, Michael Mando and Nonso Anozie. Elsewhere she scaled an indoor climbing wall, picnicked on pizza and pasta at the beach, and photographed her German shepherd, Sully Bear, aboard a private jet.

She also climbed the Sydney Harbour Bridge, met a koala and posed in Koana Swim’s gingham rose Vivian triangle top ($60).

Boyfriend Scooter Braun made multiple appearances in the slideshow — beside a helicopter, on an outdoor ropes course and re-creating the “Titanic” bow pose with Sweeney at sea. The couple, who started dating in summer 2025, have not been shy about the PDA.

Sweeney threw the former music executive an early birthday bash in June attended by Tom Hanks, Rita Wilson and Jessica Alba, Page Six exclusively reported. Warren G performed “Regulate,” Braun’s favorite, an insider told us.

Sweeney laid out her romance requirements in Cosmopolitan’s spring Love Issue back in January: “Athletic and outgoing and funny,” she said. “I’m a sporty girl, so someone needs to be able to climb a mountain with me, go skydiving with me.”

She was single at the time of that interview and told the magazine that a man she liked had ended things because he couldn’t “handle my world.” Her fallback was Sully.

“Sometimes you don’t need a man. You just need a dog,” she said.