Cindy Crawford goes makeup-free, shows off flawless bikini bod at 49

Cindy Crawford is giving us all something to aspire to!

The 49-year-old supermodel looked flawless at the beach on Monday with her husband of 17 years, Rande Gerber.

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"Who needs hair and makeup when you look like this after jumping in the ocean," Gerber, 53, gushed over his wife on Instagram.

Who needs hair and make-up when you look like this after jumping in the ocean. The #becomingcindy tour continues in Miami @casamigos

The couple took to the waves in Miami, Florida, where Crawford is promoting her new book, Becoming. The book, available now, chronicles her life and career via stories paired with some of her most memorable images.

See photos of the gorgeous supermodel:

WATCH: Cindy Crawford Reveals Her Favorite Body Part

Crawford went makeup-free while hitting the sands in a snakeskin-print two-piece swimsuit and beach waves that would put Bo Derek to shame.

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Crawford and Gerber jetted to Miami after sharing a weekend in London with pals George and Amal Clooney, as well as Matt Damon with his wife, Luciana Barroso. The group was celebrating the launch of Gerber and Clooney's Casamigos Tequila brand, in addition to the release of Becoming.

WATCH: Rande Gerber Reveals the Secret to His 17-Year Marriage to Cindy Crawford

ET caught up with Crawford last month at a book signing in New York, where she revealed her favorite body part.

"I would say definitely, as a model, your legs," she said.

As for her milestone 50th birthday coming up in February, Crawford said it isn't as big a deal as some people make it out to be.

WATCH: Cindy Crawford to Her Model Daughter Kaia: 'Enjoy Carbs While You Can!'

"When I started modeling, I thought of it as a five year career," she said. "And I kept on tacking on five more years."

"As a woman I don't go, 'Hey, whoopie!'" she continued. "But I'm grateful for my life. It's just a number, right?"

Right -- and she's definitely got the bikini pictures to prove it!