They're best pals and co-founders of Monday Swimwear.

And Natasha Oakley and Devin Brugman enjoyed a day at Sydney's Bondi Beach on Friday.

The bloggers flaunted their toned figures in skimpy bikinis and accessorised with oversize hats.

Sizzling hot! Bikini blogger Natasha Oakley [pictured], 28, flaunted her toned figure at Sydney's Bondi Beach on Friday

Sizzling hot! Bikini blogger Devin Brugman [pictured], 27, flaunted her toned figure at Sydney's Bondi Beach on Friday

Natasha, 28, sported a white and burgundy striped two-piece, highlighting her cleavage, toned tummy and lean legs.

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After a dip in the ocean, the blonde swept her wet locks back off her face and concealed her gaze behind tortoise-shell designer sunglasses.

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For an extra touch of glamour, Natasha, who went makeup free for the occasion, added an oversize beige hat to the look.

Cooling off: Natasha was all smiles as she emerged after a dip in the ocean

Cooling off: Devin was all smiles as she emerged after a dip in the ocean

Toned: Devin opted for a burgundy two-piece that revealed her ample cleavage and toned tummy

Svelte: Natasha drew the eye to her cleavage, slender waist and trim pins in a white and burgundy-striped design

Content: The girls embraced as they made their way back to their belongings on the sand

Devin, 27, sizzled in a burgundy triangle bikini top that accentuated her ample cleavage, teamed with coordinating briefs that drew the eye to her toned legs.

Accessorising with a delicate gold necklace, hoop earrings and tinted sunglasses, the American also drew attention to her year-round tan.

Running her hands through her tresses as she emerged from the water, Devin made her way back to the sand, shielding her makeup free face with a white oversize hat.

That's cheeky: Natasha and Devin showed off their pert posteriors in the skimpy swimwear

Beach babe: Devin, who hails from Hawaii, accessorised with tinted sunglasses, delicate gold jewels and an oversize hat

Quick adjustment: The brunette readjusted her swimwear as she sat on the sand

Quick adjustment: The brunette readjusted her swimwear as she sat on the sand

Sun smart: Natasha also protected herself from the sun with an oversize hat and sunglasses

In an interview with The Daily Telegraph's Stellar in July last year, Natasha said that she doesn't spend all of her time luxuriating on beaches all over the world.

'The other side of it is I run my own swimwear and activewear label [Monday Swimwear and Monday Active]. I manage all of our companies - even if I am wearing a bikini while I sit there on the laptop doing work,' she explained.

Natasha, who grew up in Sydney's Bronte, went on to suggest that the reason her and Devin have struck a chord with the public is that they aren't rail-thin.

Sitting pretty: Natasha and Devin engaged in conversation as they made the most of their beach outing

Top-up: Natasha reapplied sunscreen to her bronzed skin

Three's not a crowd: The red carpet regulars were joined by a brunette friend on the outing

'I am a curvaceous woman. And I think a lot of people have had newfound confidence within themselves from seeing what we do,' the blonde said.

Natasha launched blog A Bikini A Day with Devin in 2012.

With their newfound success, the girls co-founded retail brand Monday Swimwear in 2014.

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Natasha has also partnered with brands including Seafolly, Sunglass Hut and Bonds Australia.

Cover-up: Devin later covered her toned upper frame in a burgundy dress shirt, left undone

Cover-up: Devin later covered her toned upper frame in a burgundy dress shirt, left undone