Katie Austin Flexed Her Abs in This Crystal ESPYs Set Once Worn for an SI Swim Shoot

The five-time brand star and fitness content creator attended the award ceremony in Los Angeles last night.
Katie Austin was photographed by Ben Watts in Bermuda.
Katie Austin was photographed by Ben Watts in Bermuda. / Ben Watts/Sports Illustrated

Katie Austin brought show-stopping sparkle to the 2025 ESPY Awards—and looked every bit the bombshell doing it. The SI Swimsuit model and fitness entrepreneur stunned on the red carpet at Hollywood’s Dolby Theatre in a dazzling two-piece set from Ukrainian label Nué Studio.

Katie Austin
Katie Austin / Maya Dehlin Spach/Getty Images

Austin wore the brand’s Midnight Bra, a luxe balconette-style piece crafted from rhinestone cords with nude spaghetti straps and a silk-lined front. The barely-there top shimmered under the lights, perfectly framing her toned shoulders, radiant tan and sculpted abs. She paired it with the Cassandra Skirt, a glossy open-knit crystal mesh maxi featuring dramatic hip cutouts, crystal embellishments and a back clasp closure.

Though this look wasn’t part of an SI Swimsuit shoot, it did have a subtle connection to the franchise. Fellow SI Swim model Ellie Thumann wore the same rhinestone bra top during her 2024 feature in Mexico, where she paired it with gold Oséree bottoms for a mixed-metals glam moment. Both women proved that the Nué Studio piece is as versatile as it is breathtaking, whether it’s styled for the red carpet or the beach.

Ellie Thumann
Ellie Thumann was photographed by Yu Tsai in Mexico. Swimsuit top by Nué Studio. Swimsuit bottom by Oséree. / Yu Tsai/Sports Illustrated

The set exuded a futuristic goddess energy, with Austin’s long blonde-brown curls—styled by Becca Mader—cascading down her back and a golden glow enhancing her sun-kissed complexion. The Virginia native’s makeup was just as radiant as her outfit, with glam artist Alyssa Marie creating a luminous, sculpted base, feathered brows, dark, fluffy lashes, rosy cheeks and a glossy mauve lip to complete the look.

“ESPYs 2025!!! and yes my dad approved this outfit,” Austin captioned an Instagram carousel showing off her fit figure and fashion.

“WOW,” Thumann commented.

Austin, who co-won the Swim Search open casting call in 2021 and has appeared in every issue since, has cemented herself as a beloved face of the brand. Her recent shoot in Bermuda with photographer Ben Watts marked her fifth appearance, where she modeled a range of glitzy, ethereal looks that embodied confidence, elegance and fun—qualities she brought effortlessly to her ESPYs appearance as well.

Katie Austin
Katie Austin / Savion Washington/Getty Images

Away from the spotlight, Austin continues to build her fitness empire with the Katie Austin App, a subscription-based platform offering hundreds of virtual workouts. She’s also known for keeping things real on social media, encouraging women to embrace balance, prioritize movement and live joyfully.

On the red carpet, she was joined by her mom, ’90s workout icon Denise Austin. The duo have made the ESPYs a tradition, attending together for several years and always striking their signature pose—flexing their arms and flashing big smiles for the cameras.

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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.