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  • Rudie Leakproof Period Thong in black — creative side-on shot, seamless bamboo viscose period thong
  • Model wearing Rudie Leakproof Period Thong in black — rear view arms raised, seamless bamboo fit
  • Close-up of Rudie black Leakproof Period Thong from rear side — soft seamless waistband detail
  • Rudie Leakproof Period Thong in black — close-up front half-body view, seamless mid-rise fit
  • Model in Rudie Leakproof Period Thong black — half-body view with arms up, soft bamboo period thong
  • Rudie Leakproof Period Thong in black — side rear view hand on hip, seamless period thong
  • Model wearing Rudie black Leakproof Period Thong — side view looking at camera, bamboo viscose
  • Model in Rudie Leakproof Period Thong black — rear half-body view, seamless bamboo period thong
  • Rudie new Leakproof Period Thong in black — front view design shot by Mei Seto
  • Rudie new Leakproof Period Thong in black — back view design shot by Mei Seto
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Leakproof Period Thong

Leakproof Period Thong

$29.95 AUD
$29.95 AUD
Sale Sold out
Shipping calculated at checkout.

Barely-there bamboo period protection for light days, discharge and backup. Seamless under clothes, soft against skin and absorbent without the bulk.

🌿92% bamboo body, soft against skin
💧Light-to-moderate leak protection
☁️No bulk, no crinkle under clothes
Absorbency: Light to moderate 5 to 10 ml
Size
Runs slightly small

Choose your bundle

One pair replaces ~120 disposables. Pays for itself in about 3 cycles.

Add everyday support

Rudie seamless bamboo bralette in black, front view product shot — wireless wire-free design
Bamboo Bralette $44.95

Complete the set

Bamboo Bralette

Soft, wire-free support that moves with you.

  • 92% bamboo viscose, 8% elastane
  • Removable moulded pads with side pockets
  • Adjustable straps and back hook-and-eye closure
  • Seamless, breathable and true to size

Find your fit

Sized by your usual AU dress size. If you are between sizes or fuller in the bust, size up.

SizeAUUnderbustBustXS663–67cm79–83cmS868–72cm84–88cmM1073–77cm89–93cmL1278–82cm94–98cmXL1483–87cm99–103cm
See the full bralette →
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Free AU shipping over $75
Easy cold wash & reuse
PFAS-free materials

About Rudie

  • 92% organic bamboo, with up to 70% less synthetic than the industry standard.
  • A thin, multi-layer leak-resistant gusset: cotton, bamboo terry and a leak barrier with seaweed fibre.
  • Reusable for years, replacing hundreds of disposables and their plastic.
  • Honest by design, with the exact fibre numbers printed on every label.

Why you'll love them:

  • Leakproof protection
  • Reusable & sustainable
  • All-day comfort
  • Odour control
  • No crinkle, no bulk
  • Saves money vs disposables

Fabric & materials

92% bamboo viscose, 8% elastane. Knitted soft and breathable, with up to 70% less synthetic than the industry standard.

The gusset is built from several thin layers: a soft cotton top, a bamboo terry absorbent core, and a leak-resistant barrier made with modal and a seaweed fibre layer.

Care

Wash before first use. After each wear, rinse in cold water until it runs clear.

Machine wash cold on a gentle cycle with similar colours. No bleach, no fabric softener. Air dry, never tumble dry, iron or dry clean.

Made with no fluorinated chemicals (PFAS-free).

Shipping & returns

Dispatch: Order before 1:00pm AWST (Perth time) on a weekday and we dispatch the same business day. After 1:00pm, or on weekends, your order ships the next business day.

Delivery: Free shipping Australia-wide on orders over $75. Standard delivery is 4 to 9 business days. We also ship worldwide, with rates and delivery times shown at checkout.

30-day happiness guarantee: We want you to love Rudie. Give them a proper wear for up to 30 days, and if they're not right for you, get in touch and our team will sort a hassle-free refund. No awkward questions.

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Seen on real Rudie bodies

More Rudie, in real life.

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Period care, done honestly.

The Rudie difference

Period care, done honestly.

  • Comfortable all day, up to 12 hours
  • Feels like regular underwear, because it basically is
  • Leak-resistant, breathable and quick-drying
  • Washable and reusable for years
  • Holds 5 to 10 ml, about 1 to 2 tampons

Real comfort. Real feedback.

Already loved by Rudie wearers

Real feedback from customers finding a softer, more comfortable way to period.

Sarah's Rudie Classic Brief review
★★★★★
“I really like the material, it is so soft and comfy and it feels like a normal knicker when wearing. There is also no smell at the end of the day. These ones can be worn longer than the older style, yay!”
✓ Sarah · Verified buyer
Mikalyastuart's Rudie Period Thong review
★★★★★
“So good, love my thong. It also lasted six hours on my period day, so I was super happy with the absorbency.”
✓ Mikalyastuart · Verified buyer
Danni's Rudie Period Thong review
★★★★★
“I caved and bought all four. They're now my most-worn underwear and I've already placed another order.”
✓ Danni · Verified buyer
Harriet's Rudie High-waist Brief review
★★★★★
“Got my Rudie underwear and absolutely love them. They are the softest underwear I have ever felt and I use them to actually sleep in now. Super comfy.”
✓ Harriet · Verified buyer

Soft by nature, made to last.

Breathable bamboo against your skin, with absorbent layers built to keep up, then wash and wear again.

Reusable + washable

Reusable + washable

Just rinse, machine wash cold, hang dry and reuse.

Leakproof comfort

Leakproof comfort

A thin, multi-layer gusset holds 5 to 10 ml, for hours of secure, no-bulk protection.

Ultimate softness

Ultimate softness

Made from 92% organic bamboo for soft, breathable, next-to-skin comfort.

How absorbent is the thong?

All-day thong, about:

1 to 2 tampons
1 pad
2 to 3 liners

The science behind the comfort

Thin, absorbent and fast-drying.

92% bamboo viscose body
3 layers in the gusset
12 hrs all-day protection
Thin, absorbent and fast-drying.
First layer Quick-drying Soft cotton top that pulls moisture away.
Second layer Highly absorbent Bamboo terry core that soaks it up and holds it.
Third layer Leak-resistant A thin barrier with seaweed fibre that keeps it off your clothes.

You may also like

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Model wearing matching Rudie black Leakproof Period Brief and Bamboo Bralette set, front view Sizes 6–14

Leakproof Period Brief

92% organic bamboo

$32.95

Leakproof High-Waist Brief Sizes 6–14

Leakproof High-Waist Brief

92% organic bamboo

$34.95

Woman wearing a Rudie Bamboo bra showing the comfort. Sizes 6–14

Bamboo Bralette

92% organic bamboo

$44.95

Good to know

Questions, answered

How does Rudie work?

Rudie has absorbent layers knitted right into soft bamboo, with a leak-resistant barrier underneath. They wick moisture away from your skin, hold it, and keep it off your clothes. No inserts, no pads. Wear, wash, reuse.

What is it made from?

92% organic bamboo viscose and 8% elastane, knitted soft and breathable. The gusset is built from several thin layers: a soft cotton top, a bamboo terry absorbent core, and a leak-resistant barrier made with modal and a seaweed fibre layer.

Is Rudie hygienic?

Yes. Rudie is OEKO-TEX Standard 100 certified, which means the fabric is tested and free from harmful substances. A cold rinse and a cold machine wash keep every pair fresh and ready to wear again.

Can I wear these as everyday underwear?

Honestly, yes. They are so soft and no-bulk that most people forget they are period underwear. Wear them on light days, in-between days, or just because they are that comfy. Trust us, you will not want to take them off.

Is less plastic better against my skin?

We think so. Most period underwear hides 20 to 30% synthetic sitting against your most sensitive skin all day. We cut ours to just 8%, so what sits against you is mostly soft, breathable bamboo rather than plastic.

Do these feel bulky like a pad?

Not at all. The absorbent layers are knitted straight into the bamboo, not stuck on top like a pad, so a pair feels like your everyday underwear rather than a nappy. The gusset is bonded thin and flat, with nothing to shift around or bunch up.

How absorbent is a pair?

This thong holds about 5 to 10 ml, roughly 1 to 2 regular tampons. Our briefs and full briefs hold more, see each product page for its range.

How long will a pair last?

With proper care, years. Each pair is reusable and replaces hundreds of disposables and the plastic that comes with them.

How do I wash and care for them?

Rinse cold after wear, machine wash cold on a gentle cycle, then line dry. No fabric softener, no bleach, never tumble dry, so the fibres and gusset keep performing.

Up to 12 hours

All-day, worry-free protection.

92% bamboo

Soft, breathable, less plastic.

Reusable for years

Replaces hundreds of disposables.

Multi-layer gusset

Thin and leak-resistant.