1. Home
  2. /
  3. Women
  4. /
  5. Women's Underwear
  6. /
  7. Period & Leak-Proof Underwear
  8. /
  9. Period & Leak Proof - Classic Bikini - Moderate - Heavy
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
XS-4XL
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
XS-4XL
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black
Period & Leak Proof - Classic Bikini - Moderate - Heavy - Black

Period & Leak Proof - Classic Bikini - Moderate - Heavy

In Period Seamfree Fabric

$29.95
$20.97AUD
Save 30%

FEEL GOOD SALE | UP TO 50% OFF ALMOST EVERYTHING

Spend $200+ to receive a FREE Limited Edition Magenta Matching Set

Colour:
Size
Help Find My Size

Spend $60+ for Free Standard Shipping, $150+ for Free Express Shipping

Earn 20 points when you purchase this product  Log in
Features
Breathable
Leak Proof Technology
Non-Toxic
Odour Resistant
PFA Free
Moderate - Heavy Absorbency
Size & Fit
Runs small
True to size
Runs large
  • Low-rise fit ensures a comfortable wear.
  • Soft ribbed waistband and seamfree construction for added comfort
  • Machine washable with fast-absorbing leakproof technology.
  • Double-layered towelling gusset ensures freshness and dryness.
  • Designed for moderate to heavy period days, occasional light bladder leaks, and discharge.
  • Absorbency: Up to 3 regular tampons, up to 3 regular pads, holds 15ml.
  • Certified as 100% PFA-free.
Outer: 79% Viscose made from bamboo, 15% Nylon, 6% Elastane. Gusset 1 : 100% Cotton. Gusset 2: 72% Viscose made from bamboo, 28% Cotton. Gusset 3: 86% Modal, 7% Seaweed Fibre, 7% Elastane.
Wash before wear, after use rinse with cold water until water runs clear. Machine wash cold with similar colors, gentle cycle. Do not bleach. Do not tumble dry, flat dry in shade. Do not iron. Do not dry clean.
  • Free Standard Shipping on AU orders over AU$60. Free Standard Shipping on NZ orders over NZ$70.
  • Free Express Shipping on AU orders over AU$150.
  • Fast delivery, track your order easily. Learn more about shipping and delivery.
  • Easy returns process, accepted within 30 days of purchase. Learn more about our returns policy.
  • Items purchased at a discounted price during promotional sale events are eligible for exchange or store credit only.
  • Final sale items cannot be exchanged or returned.
  • Only unopened Underwear can be returned.
Size chart
We are here to help you choose your perfect fit
UNDERWEAR SIZE CHART
Model Bio
Model's Photo - Laura De Wit

Laura


Height:176cm (5' 9")
Waist:62cm (24.4")
Bust:82cm (32.3")
Hips:90cm (35.4")
Wears: Size S Boody Bottom

Model's Photo - Caitlin Murphy

Caitlin


Height:183cm (6' 0")
Waist:86cm (33.9")
Bust:100cm (39.4")
Hips:121cm (47.6")
Wears: Size XL Boody Bottom

Model's Photo - Jessica Turnbull

Jessica


Height:171cm (5' 7")
Waist:98cm (38.6")
Bust:121cm (47.6")
Hips:141cm (55.5")
Wears: Size 2XL Boody Bottom

Complete The Look

Period & Leak Proof - Classic Bikini - Moderate - Heavy

Why is this product perfect for you?

  • Low-rise fit ensures a comfortable wear.
  • Soft ribbed waistband and seamfree construction for added comfort
  • Machine washable with fast-absorbing leakproof technology.
  • Double-layered towelling gusset ensures freshness and dryness.
  • Designed for moderate to heavy period days, occasional light bladder leaks, and discharge.
  • Absorbency: Up to 3 regular tampons, up to 3 regular pads, holds 15ml.
  • Certified as 100% PFA-free.

Why We Made This

All the comfort and breathability of our regular Classic Bikini undies but with added reliable, stress-free protection. Featuring four-layer, fast-absorbing leakproof technology that holds up to 3 regular tampons, keeping you fresh and dry. All our Period & Leak Proof Underwear is PFAS and Silver free, as it should be.

Frequently Asked Questions

Here are the questions other people ask about this product.

They feature a low-rise fit that sits on the hips, with full bum coverage. If you’re a fan of our Original Classic Bikini, these are for you.

They offer Moderate to Heavy absorbency, holding up to 15ml, equivalent to up to 3 regular tampons or 3 regular pads.

Yes. Designed for moderate to heavy flow days, many people wear them comfortably throughout the day, depending on personal flow and preference.

The underwear features fast-absorbing, built-in leak protection, including a single-layer towelling gusset that helps absorb moisture and keep you feeling dry.

No. The absorbent layers are integrated into the underwear, so they feel much more like your everyday underwear.

Yes. They are certified 100% PFAS & Silver free, meaning they do not contain harmful forever chemicals.

Yes. Reusable period underwear can save money over time compared to continually buying disposable products.

You can machine wash them with your regular laundry on a cool wash, up to 40°C/104°F. Avoid fabric softener and tumble drying to help maintain the leak-proof technology.

The Period & Leak Proof Classic Bikini Moderate to Heavy are available in extended sizing; XS-4XL.

Overall rating: 4.529762 / 5 from 168 reviews.

AI Generated Review Summary

This bikini offers comfortable and reliable protection for moderate to heavy periods and occasional light bladder leaks. It features a soft, wide, flat-ribbed waistband and mid-rise fit, ensuring a comfortable wear. The fast-absorbing leakproof technology and four-layer protection keep users fresh and dry, certified as 100% PFA-free.

Summary topics

  • Protection: 5%
  • Comfort: 8%
  • Feel: 11%
  • Leak Prevention: 9%
  • Absorbency: 5%

Review topics: ["fit","quality","fabric","pants","comfort","feel","protection","undies","underwear","leaks","side","flow","wear"].

Review highlights

  • "Really happy with these period undies, they are super comfortable, fit really well and have great absorbency." — Laura M.
  • "Very good fit and absorbency, super soft, and overall comfortable." — Aurelie S.
  • "I use these undies as a back up with my menstrual cup overnight and the absorbent back gives great peace of mind." — Kaylee F.

Reviews

Perfect period underwear!

"These period underwear have the liner all the way up the back to the band to prevent those unavoidable leaks at night while lying on your back. Such a small detail that makes such a difference compared to other period underwear."

— Lacey J. (5/5)

Best period undies!

"These are by far the best period undies I have ever purchased. Would highly recommend."

— Melissa H. (5/5)

The best period undies

"These work well and are so comfy. Flawless product!"

— Krystle J. (5/5)

Comfortable and effective

"These are on the thicker side but they do the job well and fit snuggly/well. I like them more than the last period underwear I purchased."

— Lara O. (4/5)

Not too thick

"Not as thick as other brands in the crotch and feels really comfortable to wear"

— Susie (4/5)

Does what I need it to do!

"Comfortable, soft, invisible, absorbent!"

— Rebecca H. (5/5)

Treat yourself during your period; Get a pair of these!

"These are so comfortable and hold a decent amount of blood. I've tried lots of different period undie brands and these are the only pair I've found that feel like a normal pair of underwear whilst still providing decent protection. My only note is to be careful when taking the tags off, I accidentally pulled the wrong string on one of my pairs which pulled the gusset away from the underwear but it'll be good as new with a little handsewing. I was hesitant to get myself a pair at first as they seemed a bit expensive for me but they are definitely worth the price- anything that makes that week a little less uncomfortable is worth it in my books!"

— Scarlett J. (4/5)

Absolutely brilliant, never tried these

"Absolutely brilliant, never tried these before but always bought boodys other pants and was interested to see how these perform. These are the most comfortable pants. You can have confidence that they do their job. I was amazed how they work I don’t know as they are sleek and comfortable with high absorption. Super pants."

— Rachael S. (5/5)

Good

"I am very impressed with the comfort and wearability. My only issue is I would like some lighter colours to wear under light coloured clothing."

— Vicki H. (5/5)

New favourite period undies

"Comfiest period undies I've ever owned, good coverage, no leaking"

— Scarlett (5/5)

Q&A

On the Grid

Follow @boody