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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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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 To Pack and Send Returns

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.

 

You found the ketch-Up Community Members Only Perk.

 

For a limited time only.

 

Enter for the Chance to
Win a 4-Pack of Period Undies by Pee Chee Cheex.

 

A community perk that also creates a shared conversation

ketch-Up is all about helping women meet, connect and share real-life experiences in a safe, welcoming space.

So we’re offering ketch-Up members the chance to win something practical, personal and very useful: 👇

Any 4-pack of Pee Chee Cheex Period Undies of your choice.
Valued at $166–$180, with shipping included within Australia.

 

What's the Catch?

This is not only about the giveaway.

After you register (below), we’ll email you a short 10-question survey about your broader period care experience. The anonymous, combined results will be presented to the ketch-Up community and will be open to discussion during their upcoming meetups.

Because sometimes seeing what other women are using, buying, managing or quietly putting up with can open up the kind of shared conversation that helps women feel less alone.

No individual answers will be identified.

Just shared experiences, interesting patterns and probably a few “wait, I thought I was the only one” moments.

 

Meet Pee Chee Cheex

Pee Chee Cheex is a new Australian period undie brand created to help women feel more comfortable, protected and supported through their period.

One of our values is to empower women with more freedom to do what they want, when they want, and perform at their highest level without feeling limited by their period care products.

Because whether you’re heading to work, meeting friends, going to a high tea, or just trying to get through a very normal very busy day…

Your period care should not be another thing demanding constant attention.

 

How to enter the draw

To enter, simply:

  1. Join the Pee Chee Cheex mailing list by completing the form below.
  2. Look out for our short 10-question survey, which will be sent to you by email.
  3. Complete the emailed survey.
  4. Stay subscribed until the draw date on 10 July 2026.

That’s it.

One winner will be selected at random and contacted by mobile phone and/or email on 10 July 2026.

 

What you can win

The winner will receive:

Any one Pee Chee Cheex 4-pack of their choice
Retail value: $166–$180
(Shipping included within Australia).

 

Not the winner?

You’ll still receive a special Pee Chee Cheex discount code after the draw as a thank-you for taking part.

 

Give Away Draw Terms

 

Draw closing time: Entries close 11:59pm AEST on 9 July 2026.

Draw time: Winner drawn at 12:00pm AEST on 10 July 2026.

One entry per person.

Full draw terms are available below.

 

Enter the draw

👇

📍 Where do we send the survey and discounts

We Were
...Over It.

 

Pads. Tampons. The noisy rustling, the rubbing, the “is that something on my sheets?” paranoia.

The real gut-punch? Our daughters. The thought of our little legends dealing with the same leaky pads and tampons we grew up with? Absolutely not. Watching them quickly develop trust issues with their bodies (when really, it’s the products failing them) was heartbreaking 💔.

And honestly? Even some of the earlier period underwear we tried raised a few long-term concerns once we started poking around.

We wanted better. We wanted them, and all of us, to feel normal, confident, and free again.

That’s why we made Pee Chee Cheex: leakproof for heavy flows, properly comfy, and no-added chemicals ✨

 

Register Now ⤴︎

Materials & Design

(no added chemicals)

 

We crafted undies for performance and we avoid chemical add-ons—because they’re made with love, for loved ones.

Wait… doesn’t all fabric use chemicals somehow?
You're right... most modern fabrics involve some level of chemical processing during manufacturing, including bamboo viscose, modal and cotton.

The bigger question is which chemicals hang around in the finished garment you wear, and whether extra chemical finishes are added afterwards for things like odour-control or antibacterial claims.

Pee Chee Cheex doesn’t rely on added odour-control or antibacterial finishes to manage smell. Instead, our breathable design and custom fabrics naturally help manage moisture and odour.

We also require suppliers to meet OEKO-TEX® Standard 100, and The Period Undie has been independently tested for substances including PFAS-related compounds and phthalates.
If you don’t add odour chemicals, won’t it smell?
Short answer: No, with proper wash care. We designed with love and respect for our most sensitive skin: breathable layers, quick-dry flow paths, and natural fibres that help with odour without fragrance. Two layers of Lenzing Modal™ wrap the body, with bamboo-derived fibres on the inside, air moving through the gusset, moisture locked in the core. Our brave sniff-panel gave it the thumbs-up, pre-wash and post-wash. Nothing to mask. Nothing to wash away over time.
But aren’t coatings and chemical adhesives needed to stop leaks?
Nope. Think channels and barriers, not glue. Layered wicking + a quad-barrier design with edge guards locks fluid where it should be. No “spray-on” coatings, no phthalate-heavy glues. The leakproofing is built-in by design, so it survives wash after wash.
What exactly do you mean by “no added chemicals”?
Plain English: no PFAS/PFCs, no fragrance, no “anti-bacterial” treatments, no odour-controlling chemicals, no moisture-control coatings, no phthalate-based glues. For our peace of mind, we do independent global lab testing just in case something tries to slip through. (We follow one of the most comprehensive restricted substances lists used globally by apparel brands.)
So how are these undies different without chemical add-ons?
We redesigned the period playbook: how air moves, how moisture flows, and how layers interact. After 19,000+ hours, 57 prototypes and 49 fabric blends, we landed a patented quad-barrier system with built-in air channels and a lock-in core.
  • Leak sorted, by design: layered wicking pulls fluid down; quad-barriers and thigh-gap edge guards where you need them.
  • Odour managed by fibres and airflow: Lenzing Modal™ + bamboo-derived fibres and air channels keep things breathable and quick-drying.
  • Comfort without bulk: 3D Comfort Gusset holds heavy flows yet feels thin at the thigh gap; two full layers of stretchy, silky Lenzing Modal wrap the body so it feels like real comfy undies.

 

Register Now ⤴︎

Draw Terms

No purchase required.

Open to ketch-Up community members with an Australian shipping address.

To be eligible, entrants must join the Pee Chee Cheex mailing list, complete the emailed survey and remain subscribed until the draw date on 10 July 2026.

One winner will be selected at random and contacted by mobile phone and/or email on 10 July 2026.

One entry is permitted per person. Entrants must provide accurate contact details, including a valid email address and mobile phone number**, so Pee Chee Cheex can verify the entry and contact the winner.

The prize is one Pee Chee Cheex 4-pack of the winner’s choice, valued at approximately $166–$180, with shipping included within Australia.

If the winner cannot be contacted or does not claim the prize within 7 days, Pee Chee Cheex may redraw the prize and select a new winner at random.

Pee Chee Cheex may take reasonable steps to verify an entrant’s identity, contact details and eligibility before awarding the prize.

By entering, you agree to receive emails from Pee Chee Cheex. You can unsubscribe at any time, but you must remain subscribed until the draw date to be eligible to win.

Survey results may be shared with ketch-Up in anonymous, aggregated form only. No individual answers will be identified.

** Your mobile phone number will be used for draw administration, entry verification and/or winner contact. It will not be used for SMS marketing unless you separately consent to receive SMS marketing.

 

Register Now ⤴︎