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Kate Hudson looked ready for the beach in her latest post to social media.

On Tuesday, the 41-year-old mother-of-three took to Instagram to show love for her pal, Sara Foster, by modelling a piece from Foster's swimwear collaboration with Summersalt.

ALSO SEE: Katharine McPhee shows off in swimsuit designed by stepdaughter Sara Foster

In one photo, Hudson wore the Sara Foster String Bikini Top and a white skirt while dancing around her kitchen. In a separate snap, the actress showed off her toned abs and the matching Cheeky High Leg Bottoms.

"My girl Sara Foster giving us some spring time cotton candy in a swim suit collection!" Hudson captioned her post. "Love it. Love you."

Hudson's fans couldn't get enough of the star's makeup-free bikini photos and quickly took to the comments to compliment her on her fit physique.

"Stunning as ever," one fan wrote. "Hot mama!"

"You worked hard to get that body," said another fan. "Cute suit!"

Hudson's look is just one design from Foster's collection, which features pieces in a cotton candy coloured print for every member of the family.

The Sara Foster String Bikini Top and Cheeky High Leg Bottom

SHOP IT: Summersalt, $82 CAD/ $65 USD (Top)

SHOP IT: Summersalt, $75 CAD/$60 USD (Bottoms)

"I wanted to create swimwear for the whole family," Foster said of the collaboration in an Instagram post. "We did three options for women (bikini, more coverage one piece, and less coverage one piece). We did girls one piece and boys trunks age 3 months -12 . And of course men’s trunks! Investing in Summersalt and working with this team has been an absolute joy. I hope everyone loves this as much as I do."

Summersalt swimsuits have been called the "holy grail" of swimwear for women. Beloved by famous fans like Jennifer Garner and Jenna Dewan, the key to Summersalt's design is its unique “data-focused fit system.” Designers collected 1.5 million measurements and scans from 10,000 real women to create pieces women will feel comfortable wearing.

Foster's collaboration is selling out quickly — which means now is the time to outfit your whole family in time for summer!

The Perfect High Leg One Piece

Who doesn't love a one piece that shows off your curves?

SHOP IT: Summersalt, $157 CAD/$125 USD

The Ruffle Oasis

Foster's collection features a Summersalt classic design in the new, Cotton Candy Skies print.

SHOP IT: Summersalt, $157 CAD/ $125 USD

The Men's Swim Short

Summersalt's first ever men's swim shorts feature inner mesh lining and a functional tie waistband.

SHOP IT: Summersalt, $100 CAD/ $80 USD

The Girl's Ruffle One Piece

This mini-version of the women's fan-favourite features delicate ruffles on the shoulders -perfect for a mom-daughter #OOTD.

SHOP IT: Summersalt, $63 CAD/ $50 USD

The Boy's Swim Short

These swim shorts are designed to accommodate a swim diaper for little ones and feature a tie waist and functional pockets.

SHOP IT: Summersalt, $56 CAD/ $45 USD

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