Brown
Brown
Brown
Brown
Brown
Women's Underwear

BioTracker Boyleg Brief

$42.17
$47.46

A sporty boyleg with full coverage, designed not to ride up, 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:

Brown

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.

  • Sporty boyleg cut with full coverage
  • Shaped to stay in place without riding up
  • 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

BioTracker Boyleg Brief

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

In between sizes? We suggest sizing up.

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.

/

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.

  • 5 stars: 154 (85%)
  • 4 stars: 19 (10%)
  • 3 stars: 4 (2%)
  • 2 stars: 1 (1%)
  • 1 star: 3 (2%)
Some of the reviews shown are from related products the merchant grouped with this one.
V
Victoria G.
Size (AU): 6-8
Purchased size: S
How it fits: True to size
Comfy

Finally a boyleg pant that doesn’t ride up! Super
Soft and comfy fabric with nice coverage.

H
Heidi

Love paire undies. They don't show underneath tight fitting clothes. Super light and comfy. Wash and stick them in my dryer and they retain their shape! Excellent quality and definitely worth the investment. I wear M and am a size 12.

T
Tracey F.
Size (AU): 6-8
Purchased size: S
How it fits: True to size
We love short shorts

Perfect undies! I bought a whole bunch they are super comfortable, perfect shape and excellent quality.

N
Nancy

Do not like the material.

A
Anya G.

The most comfortable undies ever existed 🫶

E
Elaine

Love how lightweight the fabric is. Please make the length a little longer, though.

S
Sanet

No show and very comfy

J
Jacqueline W.
Size (AU): 14-16
Purchased size: XL
How it fits: A bit loose
Wrong sex for these

Unfortunately I was sent a pair of boy’s briefs.
They were not boy leg at all, rather the were a male pant, with a double layer section where a penis would be nestled.

A
Alice P.
Size (AU): 10-12
Purchased size: XL
How it fits: A bit tight
Perfect

Full coverage no riding up, perfect boy leg that covers your bum and stays put.

F
Fiona H.
Size (AU): 18
Purchased size: L
How it fits: True to size

BioTracker Boyleg Brief

S
Sarah H.
Size (AU): 10-12
Purchased size: M
How it fits: A bit loose

BioTracker Boyleg Brief

A
A C.
Size (AU): 10-12
Purchased size: L
How it fits: True to size
Love

Love these - the style and cut but especially the fabric. Tried the medium and large - but found the bigger size the most comfortable but not too big.

M
Margaret C.
Size (AU): 14-16
Purchased size: L
How it fits: True to size

BioTracker Boyleg Brief

M
Morgan M.
Size (AU): 10-12
Purchased size: M
How it fits: True to size
Comfort personified

I've been wearing your products for years and so impressed with the quality and style

Y
Yuka T.
Size (AU): 10-12
Purchased size: M
How it fits: True to size
I got 5 pairs of them. Very happy!

These briefs are exactly what I was looking for. They're completely seamless, comfortable, don't dig in or show through your pants/skirts. Very happy with my Paire briefs :)

I'm size 8-10 and size M fits perfectly.

K
Kerrie R.
Size (AU): 10-12
Purchased size: S
How it fits: True to size
Comfy clothes

A perfect fit so comfortable

C
Carole L.
Size (AU): 10-12
Purchased size: M
How it fits: True to size
Undeniable Undies

The best travel underpants ever.

M
Melissa T.
Size (AU): 10-12
Purchased size: L
How it fits: True to size
Love

Best pants ever

S
Starry
Size (AU): 6-8
Purchased size: S
How it fits: True to size
Most comfortable brand I have ever worn

Paired is the most comfortable brand of underwear that I have ever worn. Even though it might be a little pricey, it is definitely worth the price!

S
Starry K.
Size (AU): 6-8
Purchased size: S
How it fits: True to size
Most comfortable brand I have ever worn

Paired is the most comfortable brand of underwear that I have ever worn. Even though it might be a little pricey, it is definitely worth the price!

M
Megan

Comfortable

K
Katherine P.
Size (AU): 14-16
How it fits: True to size

Amazing!

E
E.T.

Love it! Will order more.

J
Jill C.
Size (AU): 14-16
Purchased size: L
How it fits: True to size

BioTracker Boyleg Brief

A
Andrea V.
Size (AU): 10-12
Purchased size: L
How it fits: A bit loose

BioTracker Boyleg Brief

K
Karen C.
Size (AU): 10-12
Purchased size: M
How it fits: True to size
So Comfy

Very comfortable, soft and do not ride up.

S
Sharon S.
Size (AU): 10-12
Purchased size: M
How it fits: True to size
Boy leg brief

Nice undies, very comfortable, true to size,
will definitely buy some more

S
Sarah N.
Size (AU): 10-12
Purchased size: M
How it fits: A bit loose
I need more

Unbelievably comfortable, I’ve already purchased more