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  • A woman modeling a light blue two-piece bikini on a dock with boats and water in the background.
  • A close-up of a model wearing a light blue bikini top with a unique keyhole cutout at the center, secured by two small gold rings.
  • A woman posing on a sunny day at a marina, wearing a light blue two-piece bikini. The background shows boats and water in soft focus.
  • A woman wearing a light blue two-piece bikini stands on the helm of a white sailboat under a gray canvas cover, looking over the side of the boat.
  • A woman modeling a light blue two-piece bikini with a halter-style top featuring a front keyhole cutout and matching high-cut bottoms, posed against a neutral beige textured backdrop.
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  • A woman modeling a light blue two-piece bikini, holding a large woven straw tote bag against a textured beige studio backdrop.
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Triangle Bikini Top

$139
$139
Why It's Worth It
Shipping calculated at checkout.

or 4 X $34.75 with

Arriving October 2026.
The classic bikini shape, minus the fuss of ties. Larger bust friendly A-F cups.

Bust Support:

Bust Support: Excellent

Colour: Cornflower Blue
Size US 4 / AU 8 / EU 36
XS US 4 / AU 8 / EU 36
S US 6 / AU 10 / EU 38
M US 8 / AU 12 / EU 40
L US 10 / AU 14 / EU 42
XL US 12 / AU 16 / EU 44
2X US 14 / AU 18 / EU 46
3X US 16 / AU 20/ EU 48

Size Guide

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Fit

Snug True to size Relaxed

Details

Arriving October 2026.

Goodbye, constant adjusting because this is the triangle top that actually stays put. Our Triangle Bikini Top keeps the classic shape you love, minus the ties, the constant readjusting and the “am I about to spill out?” moment. A structured fixed triangle shape, proper coverage and brushed gold hardware keep everything where it belongs, while adjustable straps let you fine-tune the fit. Bigger bust friendly, because we’re sick of big bust girls feeling like an afterthought.

- SUPPORT - fits A-F cups. Fixed triangle design for secure lift and hold, with real coverage for fuller busts that usually can't trust a triangle top
- NECKLINE - flattering V-neckline with thin removable foam cups and considered coverage through the sides
- ADJUSTABLE - adjustable straps for a personalised fit
- CUPS - removable foam cups, so you can keep the shaping or ditch it
- FABRIC - Ultra matte LuxeCrinkle fabric
- HARDWARE - brushed gold hardware at the centre front, back and clasp
- SIZE RANGE - XS-XL (Australian sizes 8-14)

The bikini for women who thought triangle tops weren't built for them. Same effortless shape with far more support. No tying, tugging or wondering if your boobs are about to make a run for it. Just put it on, adjust it once and get on with your day.

Shop All Bikinis

Fabric & Care

This swimsuit is crafted from our high quality LuxeCrinkle fabric - made using recycled plastic bottles and pre consumer waste. Soft and supportive.

Outer: 84% recycled polyamide, 16% spandex
Lining: 75% recycled nylon, 25% spandex
Care Tips:

  • Rinse in fresh water after every wear, especially after pools or spas
  • Cold hand wash or gentle cold cycle, separately, to prevent colour transfer
  • Avoid tumble drying, bleaching, soaking or ironing
  • Dry in the shade

Then go have a nap - because laundry is the worst.

Country of Origin: China

What’s My Size

We recommend checking your measurements against our size & fit guide before ordering. Good news is we do offer exchanges and refunds if the size isn’t spot on.

That said, it's a compressive swimsuit, designed to help you feel held and supported (like wearing your favourite activewear)!

ABOUT OUR MODELS:

Lyndi wears Size Small/AU 10/US 6
Height: 165cm (5’5”)
Cup: C

Shima wears Size Small/AU 10/US 6
Height: 171cm (5’6”)
Cup: B

Liz wears Size Small/AU 10/US 6
Height: 178cm (5’8”)
Cup: D

Alana wears Size Large/AU 14/US 10
Height: 173cm (5’6”)
Cup: DD

Laura wears Size Large/AU 14/US 10
Height: 178cm (5’8”)
Cup: G

Jessie wears Size 2X/AU 18/US 14
Height: 171cm (5’6”)
Cup: F

Delivery & Returns

Standard and express shipping available depending on your region.

Easy returns: 14 day money back guarantee on all full price orders. We offer exchanges, 110% of your purchase price as store credit or refunds on all full-price orders.

Click here for our full returns policy and all shipping info.

FAQs

Does this have an underwire?
No. The Triangle Bikini Top uses a fixed triangle design instead of ties, so it is the structure - not underwire - that holds everything in place.

What bust sizes does it suit?
Designed for A-F cup busts. The structured silhouette and thin removable foam cups give it a secure, larger bust-friendly fit without losing the classic triangle shape.

Does it run true to size?
Yes. Choose your usual size based on our size guide. If you're between sizes, size up.

Are the foam cups removable?
Yes. The V-neckline is finished with thin, removable foam cups for shape - wear them in or out, whichever suits your bust.

Will it actually stay in place?
Yes - that is the whole point. No ties to knot, no re-adjusting. The fixed triangle design and structured front hold everything where you put it, in the water or out.

What's the fabric like?
Luxe Crinkle - chlorine-resistant with a 4/5 rating, so it holds its shape and colour wear after wear.

Can I mix and match with other bottoms?
Yes. The Triangle Bikini Top is sold separately, so you can pair it with any Fearless bikini bottom to build the fit and coverage you want.

Are colours true to photos?
Yes. Colours are photographed in natural light, though slight variation can occur depending on screen settings.

Style With

  • A woman modeling a light blue two-piece bikini with a front keyhole cutout detail on the top, set against a neutral beige background. A woman stands with her back to the camera wearing a light blue two-piece bikini and holding a large woven straw tote bag against a textured beige studio backdrop.

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    $229
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View full details

Fabrication: LuxeCrinkle

  • A close-up texture shot of a light blue fabric or material surface.

    Texture

    Sculpting crinkle

  • A light blue bikini shown flat against a white background, with decorative arrows pointing toward the gathered cups.

    Support

    Lifts and holds

  • A woman wearing a light blue two-piece bikini swimsuit lies on her back on a wooden boat deck next to the water.

    Wear to

    Beach, pool, sauna

  • A woman modeling a light blue two-piece bikini with a keyhole front on the top, paired with a white patterned headband, against a textured beige studio backdrop.

    Best for

    Relaxed feel, disguising texture

A technical fashion illustration showing front and back line drawings of a bikini on a model, with handwritten descriptive notes around the figures on a light beige background.

The shape you love, with the support you need

Meet your new power piece: a bold fixed-triangle top with a flirty cut-out and just the right flash of gold hardware. With wider adjustable straps and a supportive underband, it’s made to lift, hold and have you owning every sun soaked moment.

Why You Can Trust Our Sizing

We surveyed 15,000 women before designing a single item and we're still listening.

Every item is fitted and tested on two sizes - a 10/12 (C-Cup) and a 14/16 (E-Cup) - then trialled on real women in their 20s to their 60's. Because no two bodies are the same.

When our fabric ran small, we changed the sizing. Feedback beats data, every time.

Sizes XS-3X. Built for the body you actually have.

Still Not Sure?

Finding a swimsuit that actually sculpts, supports and survives the ocean without a wardrobe malfunction? We used to think that was a myth too. Don't take our word for it - real women are already raving about the fit, the comfort and the "wait, this actually works" confidence Fearless delivers.