Katie Austin’s Equipment-Free Booty and Abs Workout Is Perfect for Summer Travel

The three-time SI Swimsuit model’s routine is ideal for on-the-go exercise.
Katie Austin

Katie Austin.

Certified fitness trainer and health coach Katie Austin just shared a workout video on TikTok that’s perfect for moving your body while you’re on the go. The equipment-free workout focuses on toning your glutes and abs, and can be done just about anywhere.

In the brief clip, Austin wore a purple workout set and white athletic sneakers while she demonstrated each move on a pink yoga mat. The three-time SI Swimsuit model’s workout included cross climbers, back leg lifts, bicycles, hip bridge holds and side leg lifts.

“Try this quick booty & abs workout in your living room, hotel, outside, anywhere anytime!” the 29-year-old wrote in her caption.

Her Katie Austin App features more than 250 on-demand workouts and healthy recipes. Plus, she recently launched a summer challenge that’s guaranteed to get you feeling confident for the warm months ahead.

In 2021, Austin was named co-winner of the brand’s Swim Search, and earned co-Rookie of the Year honors in ’22. She returned to the SI Swimsuit Issue for her third year this May and posed for photographer James Macari in the Dominican Republic. Check out one of her favorite looks from this year’s photo shoot here.

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Cara O’Bleness


Cara is a trending news writer/editor for Sports Illustrated Swimsuit. A passionate writer and editor with more than 10 years of experience in print and online media, she loves storytelling and believes that words have the power to change the world. Prior to joining the team, Cara worked as a writer and editor across a number of content verticals, including food, lifestyle, health and wellness, and small business and entrepreneurship. In her free time, Cara loves reading, spending time with her family and making her way through Michigan’s many microbreweries. She is a graduate of Michigan State University's School of Journalism.