Supermodel Irina Shayk looks stunning – and ripped – in an itsy-bitsy siren red bikini, one day after her 30th birthday.
Shayk posted a mirror selfie of her sleek swimwear (and envy-inducing abs) on Instagram Thursday.
"2016 lets go," Shayk captioned the photo.
The Sports Illustrated model, is no stranger to looking hot in a swimsuit – she spent the summer showing off her awesome bod in various bikinis while vacationing with boyfriend Bradley Cooper.
Shayk revealed the secret to her physique to PEOPLE in September, crediting her parents for doing part of the work.
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But Shayk doesn't hold back when it comes to food. The Russian supermodel said that she's "a model, but I love to eat."
"When I was growing up in Russia my grandmothers would cook the best pancakes in the world: the best meatballs, the best dumplings," she says. "So I really, really love food. And I don't understand how people don't eat. I do eat everything."