Women's Underwear

Original BioTracker Classic Bikini

$20.30
$29

A classic bikini that sits mid-rise on the hips, made from super-fine modal with Paire’s trademarked NudeTech™. BioTracker™ changes colour gradually with wear and washing, giving a replacement prompt over time. An antibacterial RegSilk Protein™ Fibre gusset keeps it fresh and soft against the skin.

Colour:

Latte

Size

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

  • Classic bikini cut that sits mid-rise on the hips
  • Trademarked NudeTech™ for next-to-skin comfort with a barely-there, skin-like feel
  • BioTracker™ hygiene tracker built into the garment, its colour shifting gradually with wear and washing to show when a pair is ready to replace
  • Soft stretch that moves naturally with the body
  • Antibacterial RegSilk™ fibres that help stop bacteria building up
  • Breathable fibres for everyday comfort
  • Hypoallergenic and gentle on sensitive skin

Machine wash in a mesh bag on a gentle cycle below 30ºC, using a mild, enzyme-free detergent. No bleach, fabric softener or tumble drying; dry flat in the shade.

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$120. Free worldwide shipping over A$200.

Learn More

Take your time. Make sure it feels right.
We want you to feel confident in your Paire. Take the time to try your new piece, check the fit and see how it feels. If it’s not right for you, you have 100 days to return it for a refund or exchange.

Learn More

Any 4 socks or undies for 5% off.
Any 6 socks or undies for 10% off.
Any 10 socks or undies for 15% off.

Discount applies at checkout.
All packs excluded.

Sizing Chart

Original BioTracker Classic Bikini

XS S M L XL 2XL 3XL
AU
6-8
8-10
10-12
12-14
14-16
16-18
18-20
US
0-2
4-6
8-10
10-12
12-14
14-16
16-18
Hips (CM)
85-90
90-95
95-100
100-105
105-110
110-115
115-120
Waist (CM)
60-65
65-70
70-75
75-80
80-85
85-90
90-95

Style with

GlowTint™
Travel Bra

Wireless
T-Shirt Bra

Ankle Sock

Calf Sock

Cross Over
Lift Bra

On The Go
Boxer Trunk

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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 sits softly against the skin all day.

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Product Features

This is not your ordinary pair. Made with fancy things like our sustainable silk. So you can feel things like the perfect amount of stretch, without ever sagging, bending, or snapping.
Our trademarked NudeTech™ gives every pair 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.
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.