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.
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.
We want you to feel confident ordering Pee Chee Cheex. Below you’ll find how our refunds, exchanges and guarantees work, depending on the reason your item is coming back.
100 Day Risk Free Guarantee (on any multipack)
Our 100 Day Risk Free Guarantee is here to help first-time customers try Pee Chee Cheex with confidence, and experience how our period undies perform, risk free.
This guarantee is about product performance, not fit or sizing. It’s designed so new customers can trial our leak protection with confidence.
How the 100 Day Risk Free Guarantee works
If this is your first order with Pee Chee Cheex, you’re covered under our 100 Day Risk Free Guarantee for one (1) pair only from a multipack.
When your order arrives, we recommend:
Washing and wearing just one pair first to trial performance during your period
Keeping the remaining pairs unopened, unworn, unwashed, and sealed (each pair is individually packed and sealed for hygiene reasons)
If the worn pair does not perform as intended, you can contact us within 100 days of receiving your order and we’ll help you out.
And just so you know — you don’t need to send back the worn pair.
Let us break it down for you
If you purchase a multipack and want to try Pee Chee Cheex for the first time, simply wear one pair to see how they perform.
If that pair doesn’t work for you, reach out to us within 100 days. Any remaining pairs must be unopened and sealed to be eligible for a refund or store credit.
Wearing more than one pair before contacting us may mean the order isn’t eligible under this guarantee.
A quick heads-up
This guarantee is designed to help first-time customers trial product performance only. Size or fit issues, size exchanges, change-of-mind returns, and orders placed by returning customers are handled separately — please see the sections below.
Size Exchanges
We want you to feel confident choosing your size. Our undies are made true to size, so we strongly recommend using our size guide before ordering.
If you need a size exchange, the following conditions apply:
Size exchanges must be requested within 30 days of receiving your order
Each order includes one (1) complimentary size exchange
Items must be unopened, unwashed, unworn, and unused
Each pair must remain sealed in its original packaging for hygiene reasons
Exchanges are available for the same style and colour only, subject to stock availability
If you request additional size exchanges beyond the first, an exchange fee may apply to cover handling and shipping costs. We’ll always let you know any applicable fee before processing.
Important: Size exchanges are not covered under our 100 Day Risk Free Guarantee.
If the requested replacement size is unavailable, we’ll be in touch to discuss available options.
Change of Mind
If you change your mind, you can request a return within 30 days of receiving your order, provided the following conditions are met:
Proof of purchase is provided
Clear photographs (front and back) of the product packaging are supplied to help us assess the return
The product is unopened, unwashed, unworn, and unused
Each pair remains sealed in its original packaging for hygiene reasons
The packaging has not been opened, tampered with, damaged, or altered in any way
We don’t accept change-of-mind returns on Sale, Clearance, Factory Seconds, or Final Sale items, including products in our We Made Heaps category.
For eligible change-of-mind returns, we’ll let you know whether a refund, store credit, or exchange is available, depending on the circumstances. (This does not affect your rights in relation to faulty or incorrectly described products)
Faulty Product
We work extremely hard to ensure all Pee Chee Cheex products are made to a high standard. If something isn’t right, please reach out — we’re here to help.
If a product is faulty or not as described, you may be entitled to a remedy under Australian Consumer Law.
Depending on the nature of the issue, we may offer a repair, replacement, refund, or store credit, in line with your rights.
Products marked as factory seconds at the time of purchase are excluded from this section, as any known faults are disclosed upfront.
Cost of Returns
Who covers return shipping depends on why the item is coming back — here’s how it works.
100 Day Risk Free Guarantee: If your return is approved under our 100 Day Risk Free Guarantee, we’ll take care of the return shipping. Just reach out to us first so we can help organise it.
Faulty or incorrectly described products: If something arrives faulty or not as described, we’ve got you. Return shipping will be covered in line with your rights under Australian Consumer Law.
Size exchanges and change-of-mind returns: For size exchanges or change-of-mind returns, return shipping costs are generally covered by the customer, unless we let you know otherwise.
To help make sure your return gets back to us safely, please follow the return instructions we provide. If items are sent back without getting in touch first or without using the suggested return process, we can’t be responsible for parcels that go missing along the way.
How To Complete Refunds & Exchanges
To get started, please email us at wecare [@] au.peecheecheex [dot] com before sending anything back. We’ll send you the required form to complete.
Don’t have a printer? No worries, just download the form, type your details into the fields provided, save it, and email it back to us.
Once we receive your email, our team will be in touch to confirm the next steps.
How To Pack and Send Returns
We recommend using the reusable satchel or mailer bag your order arrived in — it’s compostable and biodegradable.
Please don’t write on, label, tape, or attach anything directly to the Product(s) packaging.
If you’re arranging your own return postage, we recommend using a tracked service and keeping your tracking number until your return has been processed. This helps ensure your parcel gets back to us safely, as we’re unable to take responsibility for returns that are lost or go missing in transit.
How Long Will A Refund Take To Process?
Please allow time for your return delivery to reach us. This may very depending 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 method, 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 100 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.
THE WORLD'S BEST PERIOD UNDIE IS WAY AHEAD OF DISPOSABLES
Caress you like a comfy cloud
Leakproof, holds your flow like a dam in a downpour
Absorbs your heavy flow like a super sponge
Sleep soundly like a baby
Make no compromises like you do with disposables
Get the best of both worlds: premium comfort and protection, without added chemicals
Had a hectic day—flying interstate, client meetings, and a workout—all while on my period. Usually, I'd be juggling pads and loo breaks, but PeeChee Cheex changed that. Wore them all day, from the flight to the workout, and they held up amazing. No leaks, no discomfort. These undies made my busy days heaps easier.
- Michelle S. 5-Star Verified Buyer Review
HELP PREVENT LEAKS, ITCHING, AND DISCOMFORT WITH PERFECT PERIOD PROTECTION MADE COMFORTABLE
Move Freely
When you're working out or on-the-move, you want no-leak confidence. This helps you move freely without sneaky adjustments and can help you perform better.
Work Freely
When you're working or running errands (on-the-go) you want all-day protection and comfort. This helps you feel secure and at ease and can help you be more productive.
Sleep Freely
When you're sleeping you want your period undies to be super absorbent and stay in place. This helps you sleep soundly with peace of mind and can help you wake up refreshed.
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. 5-Star Verified Buyer Review
ENJOY YOUR PERIOD UNDIES FOR 100 DAYS (AND NIGHTS), NO PRESSURE, NO COMMITMENTS
Move-Work-Sleep freely in your [pee chee cheex] undie for 100 days (and nights). Try just one pair from a multipack, and if you don't love it, return the unopened undies for a full refund.
Monthly senior meetings are Stressful enough. Add my period on Day 1, and it's a nightmare. Always worrying about leaks, planning pad changes. Pee Chee Cheex changed that. Sat through our three-hour meeting. Fully focused. Confident. No sneaking off to the bathroom. It was such a relief. Didn’t think it was possible to feel this secure. But it is.
- Linda S. 5-Star Verified Buyer Review
MORE THAN 2.3 MILLION AUSTRALIANS SUFFER FROM MENSTRUAL PROBLEMS
32% of Australian women suffer from period problems. They might need to change their pads or tampons every hour, or even more often. Some require extra protection for heavy flows. And dealing with breakthrough bleeds means they frequently have to buy new clothes once or twice a year. Wouldn't it be nice if your period undie was part of the solution?
Best purchase I've ever made! It was so convenient not to have to keep changing a pad :) Periods were such a pain, so uncomfortable and embarrassing before, but wearing pee chee cheex makes it feel like I'm not even menstruating at all!!
- Rebecca R. 5-Star Verified Buyer Review
🛑 STOP WASTE: GO FROM $650 DISPOSABLES TO $150 REUSABLE UNDIES
When you period with [pee chee cheex], you're wearing comfy, patented undies with advanced leakproof tech.
Disposable period products can range from $350 - $650 (over two years).
[pee chee cheex] multipacks start from $150.
Keep machine washing [pee chee cheex] undies, they last.
Try [pee chee cheex] with no pressure. When you shop online, shipping is 100% free Australia-wide on all multipacks and your [pee chee cheex] undies arrive directly to your door in a tightly-sealed, pretty kraft paper package.
Try just one pair from a multipack. If you don't LOVE it in the first 100 days (and nights), we'll get the unopened undies sent back and refund you 100%.
Date nights used to make me anxoius if it was my period. Constant worry. Leaks. Loo checks. This time, I wore Peechee Cheex period undies under my dinner dress. They were perfect. The whole evening, I didn’t even think about my period once. We had a lovely meal. Enjoyed every course without stress. No last-minute changes of plans. Wish I’d found these sooner!
- Samantha W. 5-Star Verified Buyer Review
MOST DISPOSABLE PERIOD PRODUCTS (COMPANIES) ARE FULL OF IT - ARTIFICIAL PROMISES
For years, other period product companies have been putting more artificial chemicals into their product - nasty chemicals like odour management chemicals, PFAS, PFOA, PFCs, Phthalates, VOCs... they promise more and give you less care.
[pee chee cheex] CHANGES THAT
Break free from artificial promises.
Our premium fabrics mean your [pee chee cheex] undies are super comfy, with no added chemicals, just as they should be.
YOUR FAVE UNDIES SUPPORT YOU FOR YEARS, PERIOD UNDIES SHOULD TOO
Insanely excellent undies. It barely feels like I'm having my period, slept the best I've ever slept, with peace of mind about no leakage. It’s so comfortable.
- Danielle G. 5-Star Verified Buyer Review
DISPOSABLES IS SO 1999
[pee chee cheex] is silky smooth and comfy as.
Disposables feel bulky, itchy and wet.
[pee chee cheex] are never out of place.
Disposables will shift around and leak.
[pee chee cheex] is made from natural, non-toxic, skin-friendly materials.*
No matter what day of your cycle, we were made for each other.
There is no absorbency [pee chee cheex] cannot handle, even if you're Niagara Falls down there it won't stop protecting you. Regardless of flow intensity, we are confident you'll move-work-sleep better with a [pee chee cheex] undie.
Purchased another handbag while shopping on day 2 of my period. Normally, I'd rush. Not so with these panties, I felt secure. My bestie and I spent hours browsing. I never felt the need to hurry. For the first time on my period, enjoyed shopping without stress. No rushing. Just pure enjoyment.
- M. Sayer 5-Star Verified Buyer Review
YOUR PERIOD UNDIE QUESTIONS, ANSWERED
They're a total game changer!
First things first, they're machine-washable and reusable, so you can kiss those single-use disposable panty liners, tampons, and pads goodbye. Not only are they designed to protect you, but it's also designed to protect the planet.
[pee chee cheex] undies come in a range of absorbencies, from regular to super heavy, so you'll be covered no matter what stage of the cycle you're in. And they've got innovative built-in technology that includes a 2-in-1 moisture-wicking top and bottom layer, a super absorbent core, and quad barriers engineered to protect against leaks. That means you can wear them with confidence, knowing that they've got you covered.
Speaking of coverage, [pee chee cheex] period undies are rigorously tested to make sure they really work. And they're made with high-quality fabrics like Lenzing Modal, which is breathable, unfavourable for bacterial growth, and moisture-managing. Plus, it feels silky smooth and gentle on your skin, which is always a plus.
One of the best things about [pee chee cheex] period undies is the super absorbent core, WITHOUT adding harsh chemicals to treat fabrics. We take advantage of the natural benefits of bamboo. It draws your flow away from your skin and locks it away with quad barriers that protect against leaks. We've even added extra protection in those common leakage points between the legs, so you don't have to worry about a thing. Give 'em a go and see how much better you feel!
Everyone's period is different, and every day can feel like a mixed bag. The best thing about [pee chee cheex] is you can wear them for much longer than regular pads. They don't feel like you're carrying a brick in your undies like pads can, which is just plain uncomfortable. The super absorbent core is made of premium natural fabrics, so they don't expand when saturated like pads do. You can wear your [pee chee cheex] undies for as long as your daily flow allows. But, make sure you choose the right style, as some styles are more absorbent than others. We rate our undies by absorbency, with our highest absorbency styles holding up to 12 tampons worth of flow. Feeling a bit damp? It's time to change into a fresh pair, no ifs, no buts.
You might be wondering, "How many pairs do I need?" If you're not sure, play it safe and change them as often as you would a pad. That might be every two hours or every six to eight hours, depending on your flow. Our advice? Start with a 4-pack, so you have spares on hand, and don't have to do extra laundry every night. [pee chee cheex] is here to make your period care changes convenient, easy and as comfy as possible. Trust what they say, you'll never look back!
Alrighty, when it comes to getting the right size for your [pee chee cheex] undies, we recommend you first measure your hips. Make sure you measure the fullest part of your hips, including your cheeks. That way you'll get the perfect fit. In addition, we recommend you also check your waist measurement, on our Size Chart here If you're in-between sizes, we suggest sizing up (e.g. from a size 10 to 12) for ultimate comfort. Your [pee chee cheex] undies are made to stretch, so they should feel just right. And hey, remember our 60 Day Risk-Free Guarantee for new customers: if your first pair doesn't fit, we'll send you the right size. Head over to the 60 Day Risk-Free Guarantee details to read all about it!
Looking after your [pee chee cheex] undies is a breeze. Once you feel a bit damp, just swap into a fresh pair. Then rinse the worn pair in cold water (until clear) to remove most of the blood, and pop them in a mesh bag to wash.
To keep your [pee chee cheex] undies in tip-top condition, wash them in cold water on a gentle cycle and hang them out to dry. It's that simple! Avoid using bleach, fabric softeners, and the dryer to ensure they last as long as your regular undies and work at their best. If you want them to dry faster, flip them inside out with the gusset facing out and hang them up in the shade with a good breeze.
Handy tip: To conserve water, rinse them in a washing bucket while you're having a shower or save a few pairs to wash all at once. Easy as pie, and you'll be doing your part for the planet too!
Our [pee chee cheex] period undies come in different levels of absorbency, from Regular-Heavy, which can handle up to 8 regular tampons worth of flow, to Super-Heavy, which can take care of up to 12 regular tampons worth of flow. So, you're sorted for every day of your cycle, no matter how heavy or light your flow is. To make sure you get the most out of your [pee chee cheex] undies, we recommend trying them out at home first so you can see how they work. Once they start feeling damp, it's time to change into a fresh pair. If you're new to [pee chee cheex], we recommend grabbing at least a multipack of 4 undies so you're always sorted during your cycle. Who wants to do extra laundry during that time, right? Plus, we've got Switch & Save multipacks (with our 100 Day Risk-Free Guarantee) that let you build up your [pee chee cheex] collection and save some 'moolah' over the lifetime of your periods. So go ahead, get them and experience how much easier and comfier your period can be with [pee chee cheex]!
For first time customer who bought a multipack of undies, we recommend washing and wearing just one pair to make sure they are right for you. That way if you don't love the pair you tried, the rest of your order (unopened pairs) will be eligible for an exchange (subject to availability), or a full refund.
Want an example... Let us break it down for ya - If you, as a first time customer, order a 4-pack of undies, we recommend you try one pair on to make sure they are right for you. If you don't love that pair, keep that one, and return the 3 unopened pairs and we'll send you out a 4-pack exchange of the new size!
Ordered the wrong size by mistake? No worries. We give new customers free returns & exchanges on all unopened products. Read more about our Returns Policy here
CAREFUL! HAVING YOUR PERIODS IN DISPOSABLES WILL NEVER BE THE SAME
When we guarantee you'll LOVE your [pee chee cheex] undies, we mean it.
As in, you'll-hate-all-other-period-products-on-Earth type of love.
I used to wear a liner every day since having children, and I always use pads and tampons at night. But with the super heavy undies I don't need anything else. now I'm back to feeling free like I used to with this underwear. So comfy, so reliable and worth every cent. I am free again.
- Sara P. 5-Star Verified Buyer Review
LIKE BRIDGET, WE WORRY ABOUT EVERYTHING (comfort, leaks, security, safety… weight… oh dear) SO YOU DON’T HAVE TO
Sounds all too familiar? We know it’s bloody frustrating! There’s a lack of decent options when it comes to period care.
We just want something that's comfy, "really" works well, and feels clean and eco-friendly, right?
So, we decided to create our own period undies that tick all those boxes –
Undies that will change your life (literally).
It's a better option for our families, without all the drama and hassle of dealing with so many problems. After our team invested 19,000+ hours collectively (57 different designs and construction methods, 49 different fabrics), 3+ years in the making… the world's best period undie.
* Our fabrics are sourced from suppliers who adhere to Oeko-Tex standards, ensuring safety and environmental responsibility in their manufacturing processes.
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.
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.
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!
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.
