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Women's Underwear >

BioTracker Classic Bikini

$29.00

Any 4 undies or socks for 5% off.
Any 8 undies or socks for 10% off.
Any 15 undies or socks for 20% off.

Discount applies at checkout.
All packs excluded.

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A seamless classic brief made from super fine modal and RegSilk Protein™ Fibre. Engineered with Paire's trademarked NudeTech™ and BioTracker feature for superior hygiene. Super antibacterial, and soft on the skin.

Body: 88% Super Fine Modal (Tree Fibre), 12% Spandex. Gusset: 95% RegSilk Protein™ Fibre (85% Super Fine Modal, 10% Mulberry Silk), 5% Spandex.

Pay off your Paire in a few weeks by selecting ‘Afterpay’ at checkout.

We’ll foot the bill on shipping for domestic orders over A$100. Free worldwide shipping over A$200.

No questions asked. No shipping costs. We've all ordered things online but sometimes they just don't feel right. At Paire, if you have got the wrong size or just don't feel good, you have full 100 days to return it for a full refund.

Super-soft tree fibres

Powered by NudeTech™. Feels like a second skin.

Anti-smell & antimicrobial

RegSilk™ fibres stop bacteria from building up.

Never sweaty, always breezy

And refuses to reveal itself under tight pants. 

Brown

This is not your ordinary brief. Made with fancy things like our sustainable silk and signature squat-proof technology. So you can feel things like the perfect amount of stretch, without ever sagging, bending, or snapping. 

Our trademarked NudeTech™ gives your briefs that special touch. Made from plant-based Modal, it’s what makes them feel like a second skin—like you’re wearing nothing at all.

Made with RegSilk™—our regenerated silk cocoon protein fibres—which has antibacterial and anti-smell properties to keep your most sensitive bits happy and to stop bacteria from building up. The world’s first Pilates-proof panties. Thrush? Don’t know her. 

Not sure how old your underwear is?

With busy lives and schedules, most of us aren’t keeping tabs on when we last spruced up our drawers. So consider these undies your reminder app — their handy tracker changes colour with wear and time so you can see how long they’ve been in rotation for.

Designed with active proteins that sense external stimuli, BioTracker™ lets you decide when it’s time for a refresh.

Customer Reviews

Based on 282 reviews
78%
(219)
15%
(41)
4%
(10)
2%
(5)
2%
(7)
C
C.D.

Love these! They are soft, comfortable, and don’t ride up at all. Just ordered more in a different colour!

M
Michelle I.
Size (AU): 10-12
Purchased size: M
How it fits: True to size
Biotracker bikini

Such beautiful fabric all round.
Bikini is a bit higher than expected, but I'm only 147cms so was half expected... Digs in slightly on my hips as a result. Purchased mid waist today to try so can't see any lines, soooo comfortable! Don't ride up, v comfortable around tops of legs.

N
Nicole H.
Size (AU): 6-8
Purchased size: S
How it fits: True to size
Classic bikini

I love the feel and fit. The quality is beautiful. The only reason I didn’t give them a five rating is that the “ bikini” is a little fuller than I expected - it site well above my hips. I don’t mind this but it just wasn’t what I expected.

K
Kirsten H.
Size (AU): 14-16
Purchased size: L
How it fits: True to size
5 stars all the way!

Love them! So comfortable and lightweight. Very quick to dry and great range of natural and neutral tones.

J
Juliana

Disappointed after reading all the rave reviews. The material feels lovely, thats about it. These are more of a mid height than classic bikini- I’m only 5’2”. The bands around the top and leg holes cut in, so no smooth lines under clothing. They are super unflattering. For the cost I was hoping for far better!! Wouldn’t buy again.