‘SI’ Swim star flaunts flawless bikini bod in sheer, body-hugging dress

Abby Tegnelia

‘SI’ Swim star flaunts flawless bikini bod in sheer, body-hugging dress image

John Parra/Getty Images for Sports Illustrated

Stunning Sports Illustrated swimsuit model Ellie Thumann always slays her nighttime looks. And she took to social media to show off a risky fit that flaunts every inch of her flawless bikini body.

In a September TikTok video, the three-time SI model and popular fashion influencer, 23, plays with her perfect blonde hair and lip-syncs to Sabrina Carpenter’s hit song “Goodbye” — all while flaunting her sheer, body-hugging dress that only a model could pull off.

As she lip-syncs “Goodbye means that you’re losing me for life,” Thumann flips her hair and adds sunglasses before ending the video with her signature 1,000-watt smile.

“Dress is so beautiful and u look stunning,” raved one comment.

“That dress and ur hair omg,” agreed a second fan.

“Oh I loveeee this color on you!!” added a third.

@elliethumannlol This song 💝 @Sabrina Carpenter ♬ Goodbye - Sabrina Carpenter

MORE ELLIE: ‘SI’ Swim model shows off flawless physique in stunning 2-piece gown

After shooting her 2025 swimsuit edition appearance in Bermuda, the Arizona native joined the other models for the Sports Illustrated Runway Show to close out Miami Swim Week this past May 31.

MORE ELLIE: Flawless ‘SI’ Swim model rocks lacy lingerie look for night on the town

Also hitting the runway at the ultra-glam W South Beach were cover stars Livvy Dunne, Jordan Chiles and Lauren Chan, plus models such as Penny Lane, Xandra Pohl, Ilona Maher, Katie Austin, Nicole Williams English, Ali Truwit, Camille Kostek, Achieng Agutu, Jasmine Sanders, Alix Earle, Jena Sims and Denise Bidot.

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Abby Tegnelia

Abby is a freelance writer with The Sporting News. She has been a prolific lifestyle and celebrity news writer and editor for more than 15 years. She has served as News Director at In Touch, reporter/writer at Us Weekly, reporter at New York magazine, and has written for national and international titles including Marie Claire, Glamour, Huffington Post and Expedia.