Kate Hudson in Bathing Suit Celebrates "National Bikini Day"

Kate Hudson works hard to have a fit figure at age 43. The star of this year's most hotly anticipated movie, Glass Onion: A Knives Out Mystery, just celebrated a very important holiday on Instagram. In a collaboration with King St. Vodka, Hudson posed in a dark pink bikini on a wall. She captioned the post, “It’s #NationalBikiniDay! Or, as we like to call it, National Drink in Your Bikini Day! I’ll cheers to that.” Read on to see 5 ways Kate Hudson 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 Pilates

Hudson spilled some of her wellness secrets to SELF. She says that Pilates is her favorite way to workout. “Nothing, literally nothing, makes me feel like I'm back to my body more than pilates," she says. “When I go home and get on the reformer or the Cadillac, my body immediately goes back. I can see an instant shift."

2. She Does Quick Workouts In The Morning

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Hudson has a busy schedule, but she still manages to get a workout in. She says to SELF that she likes to do quick, easy workouts when she’s busy in the mornings. "I'm one of those people who, it'll be early in the morning and I'll be in a robe getting my hair done, and I'll use my Hot5 app—and do push-ups for five minutes!"

3. She Believes In Balance

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Hudson eats pretty healthy, however, she doesn’t like to deprive herself. She tells SELF thats he believes in a balanced diet. "If I want to go out and eat at a restaurant with amazing food, I'll do that, like, once a week where I'm not thinking about it," she says. "I want to indulge! I want to do things that are not necessarily healthy sometimes."

4. She Loves To Dance

Hudson loves to dance as a way of staying in shape. She’s danced in projects like Glee and Nine. She tells SELF, "It just makes me feel so much better. You know how you see dancers always crying? It's like reconnecting with an old self."

5. She Does Simple Leg Workouts

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Hudson’s trainer, Brian Nyguyen, broke down the actress’ lower body workouts to Shape. He says that he likes to keep it simple. "We live and die by the basics," he says. "We do squats, lunges, deadlifts, single-leg balance work, sprints, sled pushes/pulls — we are doing the strength work that athletes do."