Karlie Kloss in Bathing Suit "Can't Leave the Bathroom Without Taking a Selfie"

Karlie Kloss is taking bathroom selfies in her swimsuit. The supermodel shows off her famously fit figure in one of her latest social media posts. “Can’t leave the bathroom without taking a selfie,” she captions her Instagram Stories snap. How does she stay so fit? Read on to see 5 ways Karlie Kloss stays in shape and the photos that prove they work—and to get beach-ready yourself, don't miss these essential 30 Best-Ever Celebrity Bathing Suit Photos!

1. She Does HIIT and Pilates Fusion

Karlie trains with Starr Hawkins of Baby Mama Fitness, whose trademark workout is a fusion of Pilates and high intensity interval training (HIIT). Hawkins also trains clients at Barry’s and Gotham Gym, the New York City workout studio where Karlie frequents. "Pilates relies on isolated, controlled movement and has allowed me to build up my core and strengthen my legs and arms," she previously told T Magazine.

2. She Gets Her Vitamin D

Dimitrios Kambouris/Getty Images

Being outdoors is part of her self-care routine. “Spending quality time outside is a big part of my overall wellness and personal happiness,” she told Vogue. “This past year, I made it a goal to spend even more time outside. It’s amazing how much fresh air and sunshine can uplift your mood, and that was a driving force behind these pieces.”

3. She Runs

“Oh, I love running,” she told Paper in June 2021, revealing that she had just started it up again. “No matter where I am, I always have to go for a run because all you need is a pair of sneakers,” she continued. “It's just to get outside and go, just a mental drive to push yourself to do it. And with pregnancy and quarantine, it was hard to get outside and be able to keep up that normal part of my routine. I don't know why but it took a little extra mental motivation to lace the sneakers back up and get out there. It just felt so good.”

4. She Makes Sure to “Squeeze” Workouts In

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“I am a girl on the go; I’m always running between flights, and then going to set and catching another flight and trying to squeeze a workout in,” Karlie recently told Harper’s Bazaar UK.

5. She Exercises to Feel Good

Karli Kloss/Instagram

Karlie exercises “to feel strong and challenge my body to reach new goals. Movement feeds my mind and gives me energy throughout the day,” she told T magazine. "Excessive sitting is a fairly new problem in human history. Two hundred years ago, 90% of the world lived in agricultural communities. People sat for three to five hours per day but only to take breaks from working. Modern Americans sit for 13 to 15 hours per day," says the Mayo Clinic. "Here are a few ways to incorporate movement into your day:

• Use a standing desk when possible.
• Set a reminder to stand and move at least once per hour.
• Take a walk over lunch.
• Walk during phone or conference calls."