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100% Australian Designed. Get'em with our 60 Day Risk-Free Guarantee for all multipacks.

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100% Australian Designed. Get'em with our 60 Day Risk-Free Guarantee for all multipacks.

go to Size Chart

Get accurate measurements, we recommend you re-check your size with every purchase..

For most of our styles, the most important measurement is your hip size to get the right fit. It is also useful to check your waist measurement for certain styles. Please take a look at the product description for a guide.

If you're in between sizes, we suggest sizing up (e.g. from a size 10 to 12) for ultimate comfort.

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1. Place Your Feet Together

Having your feet apart can give a measurement that is actually larger than your hip area.

2. Waist

Your natural waist measurement should be taken at the narrowest part of your torso. This is where your body curves in and is often at or above your belly button.

3. Hip

Your hip measurements should be taken at the fullest part of your hips.

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60 Day Risk Free Guarantee (on any multipack)

For first time customers, under the 60 Day Risk Free Guarantee, we'll give you an exchange for a different size (subject to availability), on your first pair (one pair) of undies that you've tried on. And by the way, you don't need to send that one back. The 60 Day Risk Free Guarantee only applies to one pair (from any multipack) of undies within 60 days of receipt.

When you get your multipack of undies we recommend washing and wearing just one pair to make sure they are right for you. That way if it doesn’t fit, the rest of your order (unopened pairs) will be eligible for an exchange (subject to availability), or a full refund.

Here's an example... Let us break it down for ya - when you get your 4-pack of undies, we recommend you try one pair on to make sure they are right for you. If that pair doesn't fit nicely, keep that one, and contact us, to return the 3 unopened pairs. Then we'll send you out a 4-pack exchange of the new size!

 

 

30 Days Refunds & Exchanges

Our policy lasts 30 days. If 30 days have gone by since your receipt of product(s), we don't offer refunds or exchanges.

To be eligible for refunds or exchanges, the product(s) must be unopened, unwashed, unused and in the same condition that you received it. Each new pair of undies are individually packed and sealed for safe hygiene and sanitary reasons. So you must return the product(s) in the original unopened packaging.

Sale Products - No refunds/exchanges will be accepted on product(s) marked as "final sale" or "factory seconds", except for our 60 Day Risk Free Guarantee (as described above) or Faulty Items (as described below).


Size Exchanges

Our undies are made true to size, so we recommend you follow our size chart for the best fit.

We will exchange unopened, unwashed, unused undies for a different size in the same style/colour only (subject to availability).

 

Change of Mind

If you change your mind, you can return product(s) within 30 days after receiving your order provided the following conditions are satisfied:

  1. Proof of purchase must be provided;
  2. Photographs (front and back) of each of the products (packaging) you wish to return; and
  3. The product must be unopened, unwashed, unworn or unused in the same new condition you received them. The packaging must not have been opened, tampered with, damaged or altered in any way by you.

We do not accept the return of product(s) under our change-of-mind policy that are Sale, Clearance, Factory Seconds or marked as Final Sale including products in our 'We Made Heaps' category.

For change-of-mind returns we will choose whether you are given a refund, online store credit or an exchange for the same item or for an alternate item (which we consider to be of equivalent type or value).

 

Faulty Product

We work extremely hard to ensure that all products are of the highest quality. If for any reason you find a fault please reach out, we are here to help.

We offer exchanges, refunds or credits on faulty or wrongly described product(s) up to 30 days since your receipt. This excludes product(s) marked as factory seconds at point of sale.

 

Cost of Returns

Subject to the conditions in the 60 Day Risk Free Guarantee, cost of returns shall be paid by us. First you will need to contact us to arrange return shipping. If you do not use our postal service we shall not be responsible for lost or missing parcels.

 

How To Complete Refunds & Exchanges

To take advantage of our Refunds policy, please complete and return this form to wecare [@] au.peecheecheex [dot] com FIRST. Don't have a printer? No worries, just download the form, type your details in the fields provided, save it and then email the completed file to us.

Upon receipt of your email, our team will contact you to confirm the details.

 

How To Pack and Send Returns

We recommend using the reusable satchel/mailer bag you received your product(s) in, which is both compostable and biodegradable. Please do not write on, label, tape or affix any other packing material on the Product(s) packaging.

We recommended you use a tracked postage service when returning product(s) because we shall not be responsible for lost or missing parcels. Please keep a copy of your return delivery Tracking Number from your relevant delivery service (Australia Post).

 

How Long Will A Refund Take To Process?

Please allow time for your return delivery to reach us. This may depend on your location. Refunds requests are reviewed within 48-72 hours of receiving your item. We will notify you once we’ve received and inspected your return, and let you know the status of your refund request. Depending on your payment option, please allow 2 to 4 weeks for refunds to be processed.


 

Please read more about Returning products to us in our Terms of Sale here.

The Experience

Enjoy the luxury of owning exclusive Curated Factory Selections—where comfort meets protection and smart patented design. Each piece is made to give you a life-changing experience by keeping you comfortable and protected from leaks. Absorbing up to 12 tampons of fluid so you can focus on what matters every day.

The Difference

Every piece is handcrafted with care, featuring tiny variations that are hard to notice. But the real difference is clear—each piece is wrapped in double layers of Lenzing modal fabric, offering a silky softness, natural moisture control, and breathability. This is premium quality you can feel.

The Craft

Experience period care that matches your high standards. Created for those who want the best, The Period Undie is built for your busy days. We spent 19,000 hours refining 57 designs with 49 premium fabrics, focusing on comfort, performance, and durability. Every detail is designed to prevent leaks and discomfort, ensuring you stay fresh and dry. We understand time is valuable—our period care is designed to keep you focused on what matters most to you.

The Value

Due to high demand, our Curated Factory Selections are limited. Get up to 34% off and up to $130 off multipacks, plus free shipping across Australia. We’re so sure you’ll love these period undies that we offer a 60-day risk-free guarantee on all multipacks. Try a pair and see the difference. This is designed for those who want the best in period care—a choice that reflects your high standards and taste.

Don’t miss this chance to make a change. Act now—this exclusive offer won’t last.

(*Limited to one multipack per person.)

We know this might feel risky

We get it. Trying something new, especially when it comes to period care. But with [pee chee cheex], you have nothing to worry about.

Here’s why:

With our 60 day Risk-Free Guarantee for all multipacks, you can try [pee chee cheex] with no dramas. No pressure. Try just one pair from a multipack, and if you don’t love it, return the unopened undies for a full refund.

See? No pressure at all.

And guess what? We’re adding FREE Shipping and Returns on any multipack too!

So, with nothing to lose, let’s take a look at why [pee chee cheex] multipacks are the smart choice.

Stop Throwing Away Money on Disposables—Choose the Smarter Option

Most of us spend $15 to $20 on disposables, every month—that’s over $200 a year, literally tossed away on single-use products. And that doesn’t even include the cost of replacing stained underwear and towels from leaks.

A [pee chee cheex] multipack is just under $150. So naturally, switching to a multipack pays for itself over and over again.

Not wasting feels good. But being ready for anything your vagina throws at you… that’s the game-changer.

So…

One Pair Will NOT Do It

Sure, one pair might get you started, but it’s not enough for your whole period. Imagine running out mid-cycle—scrambling back to disposables? No thanks!

That’s why a multipack gives you freedom and confidence for your entire cycle—whether it’s a light day or a heavy one. Never worry about running out or having to go backwards and resort to disposables – again!

You Can’t Get Simpler

Think about it: with a multipack, you’ll always have a fresh pair ready. No more last-minute panics, no more waiting for that one pair to dry. Just grab, wear, and go.

It’s like slipping into your comfiest undies, but with built-in period protection.

When it’s this easy, can you really imagine going back?

You Don’t Need to Make Trade-offs

Let’s be real: you don’t need to juggle tampons AND pads just to feel safe. [pee chee cheex] multipacks gives you full, comfortable, leak-proof protection. No more juggling multiple items. No more panty liners. Get peace of mind that comes with reliable protection, in one product.

Here’s where it gets even better: by choosing Pee Chee Cheex,

You’re Embracing a Natural Solution

…that doesn’t stick around for centuries like disposables do. When you Switch & Save with multipacks, you’re not just saving money—you’re saving the planet. Each pair is 85% compostable and biodegradable, ensuring that when they’re done, they return to the earth instead of polluting it for generations.

Every small step adds up. Start today - choose one multipack here and join [pee chee cheex] community - making a real difference, one period at a time.

are period underwear safe?

are period underwear safe?

What actually is safe period care anyway?

During our search for safe and effective period care solutions, we accidentally discovered the KEY to ‘good-for-you’ period care. 

And it involves…

…monitoring your vagina while bleeding. 

Very simple. A bit scary, too…

…but mostly simple.

Here’s what happened to one of us:

So, here I am, burning the midnight oil to meet those impossible deadlines, and, wouldn't you know,

...it's day one of the heavy period cycle.

 busy-midnight-oil

Time passes, but I ignore the call for a fresh pad. Too absorbed in my work.

"Alright, gotta take a breather, tend to my vagina," I remind myself.

Feeling more irritated, there’s an itch that just won't quit, exacerbated by the constant dampness.

I need a new pad, but work's got its claws in.

There’s a bit of soreness and discharge. I suspect it’s a bloody yeast infection.

Comfort pleads for a break, but work demands yank me back in.

A relentless struggle, a familiar bloody battle.

The question nags at me: What’s in these pads and tampons? Why can’t they go the distance?

And then there's the other one: Is pushing pads for so many hours risky?

We want better period care.

 disposables-irritation

But not enough to consider long-term risks.

This is when we recall the age-old advice… change pads/tampons regularly.

Recommended Usage Time can be a useful measure of good and safe period care.…

…all the wannabe reasonable period products out there trying to protect you…

…in a world they see is hostile to your vagina’s comfort and health.

And the world can be tough on your vaginal health…

…if you don't reduce exposure to harmful chemicals.

And, to be sure, we checked what doctors recommend.

But nothing concerning yet. Just a bunch of recommendations: like tampons, the maximum Recommended Usage Time is 8 hours…

Menstrual cups had the longest wearing time – up to 12 hours.

With cups, bacteria growth and infection are still a worry.

The biggest concern is that any internal vaginal period product carries the risk of Menstrual Toxic Shock Syndrome (mTSS).

Not to mention, there’s a learning curve, and things can get a little messy.

We keep researching.

Now, there's period underwear.

Seems like the saviour…. fits and feels like regular underwear. Your flow is drawn away from your vagina and the gusset's surface layer.

They look like the winners; they all seem to have similar features and do the same job.

Based on Recommended Usage Time, some trustworthy sources, like government authorities, say they typically last about a day.

While some doctors (and brands) recommend wearing it for up to 12 hours. Why?

What concern do some doctors have about undies?

Something didn't make sense.

We checked for harmful chemical exposure risk. It’s a biggie. Going deep, looking at the moisture management treatments they added. Weighing up the pros and cons.

Still not 100% sure.

Then, we discovered a significant problem. And this stopped us in our tracks and…

…we knew something better must be made.

Cuz we all desire the comfortable, leakproof undie they offer. Badly.

We didn’t want to risk not having period undies.

Turns out, our loved ones (some heavy bleeders) experienced the same issues after trying several different products.

What pushed us to innovate?

It was not just the risk of long-term chemical exposure, nah… the problem was even more immediate.

It was the risk of leaking (and odour) before they were even full.

Doctors advise changing early to avoid leaks and odours.

Heavy bleeders confirmed this, especially at the thigh gap.

To our surprise, this is a very common problem… most leaked well before they were ‘full’. Yet, according to their product details, they should hold more blood.

But when you start seeing red in between the thighs. Anxiety starts to creep in cuz it can only get worse with each new gush.

We were frustrated that they couldn't handle heavy flows.

By now, we're in a bit of a pickle, not even thinking about long-term chemical exposure.

We wanted something we hadn’t known existed earlier,

…thigh gap leak protection (without adding chemicals).

We want the best period care for ourselves and our teens.

They deserve to feel good about having their period. Not something that causes embarrassment, stress or panic.

So, what did we do, you ask?

After our team spent thousands of hours together…

We crafted a comfy, reusable, leak-proof undie. It absorbs more of your period and pee…

… [pee chee cheex] period undies are so effective at keeping you feeling protected, confident and clean and fresh all day…

It is Protected by a Patent!

So no undie protects like [pee chee cheex] ...or feels like them.

Here’s what you can expect from [pee chee cheex]

  • No adhesives or potentially irritating chemicals,
  • Frequent testing to ensure there are no harmful substances (PFAS, PFOA, Phthalates, Volatile Organic Compounds, etc.),
  • Made with skin-loving planet friendly materials derived from plants,
  • Natural fabrics that fight odours without added antibacterial coatings, and more.

Here’s the BEST part…

We have the best thigh-gap leak protection and a 3D Comfort gusset.

It's thin at the legs, no matter your style—Regular-Heavy or Super-Heavy.

 peecheecheex-leakproof-protection

Keen to check out the extra perks we've packed into this banger of an undie?

Check out our 'crafted with love' page here.

With Care and Love
[pee chee cheex]

 


PS: Our [pee chee cheex] team tested for harmful substances, and the undies PASSED with flying colours.

PSS: Let’s talk sense… and cents. Most of us spend around 15 to 20 bucks monthly on disposable period products. That’s made up of two packs of pads and or tampons (three plus if your flow is super heavy), which is about five bucks a pop, plus a pack of liners. Bottom line? You're looking at $180 to $240 a year, easy. And that's just for the basic stuff (not the cotton or overnight or extra-long wings).

PSSS: Now, here's the genius. Our Bikini Regular-Heavy 4-pack is only $119 during the sale. You'll break even in 6 to 8 months. Want more freedom? Grab the 7-pack from $189, which pays for itself in about a year.

 

Resources:

How often should I change my pad, tampon, menstrual cup, sponge, or period panties? - Office on Women’s Health in the U.S. Department of Health and Human Services. 2021, February 22. https://www.womenshealth.gov/menstrual-cycle/your-menstrual-cycle

Santos-Longhurst, A. 2020, December 15. How Often Should You Change Your Pad? Healthline Media. https://www.healthline.com/health/menstruation/how-often-should-you-change-your-pad#per-day

Menstrual Hygiene - Centers for Disease Control and Prevention. 2023, May 26. https://www.cdc.gov/hygiene/personal-hygiene/menstrual.html

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Let customers speak for us

from 92 reviews
Amazing! Life changer!

I absolutely love these. I have actually said to my partner that for the first time in my life I am looking forward to my period. They have become my go-to underwear for every occasion, regardless whether that time of the month has arrived or not....walking the dog, working in the office, lazing around.

Sumera L.
Merindah Hi-Waist Regular Heavy
Just right for me and my tween

I bought these to test if they are a good option for my tween who has not yet started her cycle. They are great! Snug yet comfortable fit, I feel dry and fresh even through yoga and high intensity workouts.

Silvia C.
Merindah Hi-Waist Super Heavy
Feels Amazing!

This product feels so safe, clean and secure, I am convinced!

Kristy S.
Merindah Hi-Waist Regular Heavy
Comfy and absorbent.

Comfortable, absorbent, perfect fit. It's definitely worth giving them a try. I'm ordering more!

Natalie K.
Merindah Hi-Waist Super Heavy
Surprisingly Amazing

I was a bit skeptical at first but after reading positive reviews I thought I'd give it a try. Holds your period well and keeps you feeling dry all day. It was also very easy to wash and I love the natural material it's made from because it's quite soft!

Claire W.
Merindah Hi-Waist Regular Heavy
Actually works!

Perfect fit, comfortable, and I am amazed how dry I felt all day.

Christine F.
Bunji Bikini Regular Heavy
Life saver at work

Bought these as I work in early childcare, so lots of picking up kids, jumping around, dancing and laughing which all can trigger a small leak. Was tentative about these, so decided to buy a pack and test out one pair on their risk-free guarantee. Well, after one day at work with no embarrassing moments, I decided to keep the rest.

Sara P.
Bunji Bikini Super Heavy
Unbelievable undies

These new undies have exceeded all my expectations in terms of comfort and effectiveness. I wish I had them in high school.

Valery D.
Bunji Bikini Regular Heavy