Ellie Thumann’s Newest Blue Bikini Look Is Pure Summer Goals

The SI Swimsuit model and content creator is having a quintessential laid-back July.
Ellie Thumann
Ellie Thumann / Axelle/Bauer-Griffin/Getty Images

When Ellie Thumann isn’t jetting to Fashion Week, posing for major campaigns or dazzling on the red carpet, she’s fully leaning into a slower, more intentional pace of life. The 23-year-old content creator, who was born in Arizona and now resides in Charleston, S.C., seems to have mastered the art of balance, splitting her time between glamorous work travel and laid-back seaside living. And her latest Instagram post is proof.

Ellie Thumann poses for the 2025 SI Swimsuit magazine.
Ellie Thumann was photographed by Ben Watts in Bermuda. Swimsuit by Tropic of C. Necklace by Lele Sadoughi. Bracelet by Lizzie Fortunato. / Ben Watts/Sports Illustrated

“proud to report I caught 4 fish this week,” she captioned the carousel shared with her 1.4 million followers. The images capture the ultimate laid-back summer vibe. In the cover slide, she flaunted her sculpted figure and signature glow in a cobalt blue bikini paired with a black linen button-down and an Alo Yoga bucket hat. Her soft smolder and sassy low-angle made the selfie feel effortlessly cool.

“My favorite version of u,” Ava Jules commented.

“My surfing fishing girl,” Hannah Meloche added.

Ellie Thumann poses in a blue bikini and multi-colored chaps in Puerto Rico.
Ellie Thumann was photographed by Derek Kettela in Puerto Rico. Swimsuit by ELSE Lingerie. Chaps by Denimcratic. / Derek Kettela/Sports Illustrated

The rest of the carousel offered a glimpse into her dreamy yet adventurous July. In one clip, Thumann showed off her impressive wake surfing skills, riding the waves like a natural. Another snap revealed a plate of fresh oysters—a go-to for the self-proclaimed seafood lover—while a perfectly chilled dirty martini made an appearance in a later frame.

She mixed in a mirror selfie wearing micro gingham swim shorts, a white oversized tee and a red Ralph Lauren baseball cap, keeping her beach day uniform relaxed but put together. A towering triple-scoop ice cream cone and a cold Corona came next, because what’s summer without a little indulgence?

Ellie Thumann
Ellie Thumann was photographed by Yu Tsai in Mexico. Swimsuit by Santa Brands. / Yu Tsai/Sports Illustrate

In other slides, Thumann rocked a matching knit navy tank and shorts set from Alo, and threw on classic Tommy Hilfiger overalls paired with a white tee, nailing the coastal-casual aesthetic at every turn.

Thumann, who made her SI Swimsuit debut in 2023, is no stranger to a standout fashion moment—whether she’s posing on set for the magazine in Puerto Rico, Mexico or Bermuda, or strolling through cobblestone streets in Europe with an iced latte in hand. With more than 4.4 million followers across platforms, she’s built a loyal fan base by blending aspirational style with genuine transparency. From glamorous beauty tutorials to unfiltered conversations about anxiety and self-care, her content always stays grounded and relatable.

Ellie Thumann wears a yellow gown in Caserta, Italy.
Ellie Thumann attends the Max Mara Cruise in Caserta, Italy in June 2025. / Ivan Romano/Getty Images

And this summer, it looks like she’s exactly where she wants to be—soaking up the sunshine, savoring the little things and inspiring us all to slow down and live beautifully.

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Ananya Panchal
ANANYA PANCHAL

Ananya Panchal is a writer on the Lifestyle and Trending News team for SI Swimsuit, where she covers fashion, beauty, pop culture and the internet’s favorite personalities and trends. She joined the brand in 2022 after roles at Bustle, the San Francisco Chronicle and the TODAY Show. Panchal loves to write about fashion in all its forms—from standout runway moments and evolving street style to the best accessories to elevate each season’s wardrobe (she rarely goes anywhere without a stack of jewelry and a coffee in hand). A self-proclaimed beauty fanatic, she’s always on the hunt for must-have products and loves breaking down viral trends. Her favorite series at the moment is spotlighting female founders and the stories behind the brands they’ve built—especially those shaping the future of fashion, wellness and tech. She is based between New York City and San Francisco and, when she’s not writing, can be found rewatching One Tree Hill, playing sudoku, trying new restaurants or ranking her favorite Disney Channel Original Movies. She holds a bachelor’s degree in communications and journalism with a minor in criminal justice from Boston University.