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Women's Underwear >

BioTracker Classic Bikini

$27.99
$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 302 reviews
76%
(231)
15%
(44)
4%
(12)
3%
(8)
2%
(7)
N
Nani R.
Size (AU): 10-12
Purchased size: M
How it fits: True to size
Super comfy!

Streamlined and totally comfortable. They dry quite quickly and are as advertised I'd buy more if they weren't so expensive!

D
Deanne W.
Size (AU): 10-12
Purchased size: M
How it fits: A bit loose

BioTracker Classic Bikini

M
Marita V.
Size (AU): 10-12
Purchased size: M
How it fits: A bit loose
Comfy!

Very comfy briefs, bit on the large side but still fits well. Great colours too!

M
Michelle O.
Size (AU): 14-16
Purchased size: L
How it fits: True to size
Comfy bits

Paire undies are the most comfy undies I’ve ever worn. My bits feel secure but the undies feel invisible !

I’ve bought high cut as well which are my favourite a high cut bikini would be a great addition to the range

A
Alex F.
Size (AU): 10-12
Purchased size: M
How it fits: True to size
Really comfortable

I have been looking for something that would dry quickly for travel, and for everyday use. These are so comfortable, they don’t dig in, and minimal panty line. I ordered more, they’ve fast become my favourite. Sizing was reliable.