BioTracker Mid Brief
A mid-waist brief that sits in line with the hips, neither too high nor too low, 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:
Size
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.
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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.
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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 Mid 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.
Style with
Style with
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.
Back for more - 3rd lot of Paired BioTracker briefs I have purchased. Staff in the shop were again super helpful, informative, positive and engaging. Briefs are really comfortable. They do strectch a littel in time, but more adjust to your shape rather than become baggy. Fav underwear of all time.
Love these! They have the percent weight and amount of stretch, and I love how the edges stay in place and don’t roll, even under workout clothes
I love this colour however discontinued?! Please bring back or some colours other than daggy beige as so like granny undies and boring black or white.
I am obsessed with Paire these undies are luxurious and make me happy every time I wear them
Love these undies although I don’t believe they are as good as the old style unfortunately. I would also love a different colour - pink and also white.
I love the new higher cut above the legs at the front but I find the elastic seams are not very secure, especially at the back.
I’ve been purchasing the Paire biotrackers mid brief for a number of years. Unfortunately their new biotracker range is disappointing. The fabric and fit is not as good - not sure why they had to discontinue a great product.
Wonderfully soft and comfortable
Loved the fit, fabric and feel initially but the threads of elastic have started to split / fray from the top waist band which means I now have very long elastic loose in my underwear when I wear them. I followed the washing instructions as closely as I could. For the price point, it's very expensive to not handle regular washing, 2 months into purchase
Light and comfortable quick drying for traveling
Love my new briefs. They are soft and comfortable
These are the only underwear I wear now. They don’t show any lines and are perfectly comfortable all day. No adjusting required!
💖
I have 5 pairs and I love them! I want to buy more but I’d prefer other colours…!
Fantastic knickers! Unbelievably comfortable. Please don’t discontinue them.
My most favourite knickers EVER! Please don’t discontinue them. :(
Brilliant knickers! Why are you discontinuing them?? :(
The first set was small, so I re-ordered a medium.
BioTracker Mid Briefs are the most comfortable I have ever worn. They are lightweight, breathable, a perfect fit with the right amount of stretch. These are my new favourites.
Really comfortable and very well made.
Love Paire
BioTracker Mid Brief
Comfortable and washes out overnight, I’ve just travelled around Europe for 6 weeks with carry on luggage only, Paire bio tracker briefs are the best
Briefs are comfortable and lightweight.
These are so comfortable and breathable. My favourite part is that the gusset has no stitch therefore no friction or irritation. For someone who is sensitive skin and a nerve pain condition these have been a lifesaver. I’ve spent thousands in trialing different underwear and I’m so glad I don’t have to waste anymore money. I always size up for comfort and they still stay in place
Will get more
Excellent fit comfortable wish the lipsticks came in this style