Lace Cotton Period Underwear

Regular price $26.00
Taxes included.
  • Soft, breathable cotton lace period undies with reliable protection for moderate to heavy days.

Size: Teen 12-14 (Adult 8-10)
Choose how many you need: 1 Pair

* Many people choose 2–3 pairs so they feel prepared for moderate to heavy days.

Why you'll love it

Pretty lace undies she'll actually want to wear.

A soft, breathable cotton body with a lace finish, so they feel as good as they look. Comfortable for all-day wear, with built-in protection that keeps her secure without bulk.

An easy, dependable choice for her moderate to heavier days.

Best for
  • Moderate to heavy flow days
  • Everyday wear at work, home, or out
  • People who prefer breathable cotton styles
  • When you want reliable protection without full-coverage cuts
  • Teens and adults looking for comfort with a softer, feminine feel
How the undies work
  • Holds up to 20ml (around 4 tampons’ worth)
  • Soft cotton sits comfortably against the skin
  • Absorbent inner layers help lock in fluid
  • Leak-resistant layer helps protect clothing
  • Breathable outer fabric keeps things feeling comfortable

No pads to shift. No bulk to manage. Just wear, wash, and repeat.

Fabric & care

Fabric

Soft cotton body with lace detailing, designed for breathability and everyday comfort.

Care

  • Rinse after wear. Cold machine wash. Line dry.
  • Avoid tumble drying and fabric softener.
  • We recommend owning more than one pair so you can rotate while one is washing and drying.

Owning more than one pair makes overnight use and school weeks easier.

Good to know
  • Moderate to heavy absorbency
  • Designed to be worn on its own
  • Discreet under everyday clothing
  • Reusable and easy to care for
  • Suitable for teens and adults
  • PFAS-free, OEKO-TEX® certified
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Sizes for tweens & teens

From size 8 up to 6XL

Free shipping over $70*

Straightforward delivery, no surprises at checkout.

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60-Day money Back

Changed your mind? Unworn items can be returned within 60 days.

Aussie support, when you need it

Have a question? Our team is here to help.

Loved by hundreds of customers
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5.0
Emma Verified Customer
I wear these on my heavier days and they’re so comfortable. They feel like normal underwear but give me real confidence.
Lace Cotton Period Underwear
Regular price From $26.00
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5.0
Sarah Verified Customer
Love that these actually work on heavier days and still feel nice to wear. The cotton is really soft.
Lace Cotton Period Underwear
Regular price From $26.00
Image
5.0
Zoe Verified Customer
These are my go-to for work days. Comfortable all day and no worries about leaks.
Lace Cotton Period Underwear
Regular price From $26.00
How to Care for

Your Fanzy Pantz Period Underwear

Need Help?

Can’t find what you’re looking for or need personalised advice? Our team is here to help with sizing, absorbency, orders, or anything else you’re unsure about.

Contact Us

Do lace period underwear leak?

No, our lace period underwear don't leak. With our advanced 4-layer integrated leakproof barrier and full front-to-back coverage, leaks are well and truly handled. Stay dry, protected, and worry-free on your heaviest days.

How long can I wear these lace period undies?

You can wear lace period underwear comfortably for up to 8 hours. Whether you’re at work, out with friends, or sleeping, they keep you dry, fresh, and confident without bulk.

How many tampons do lace period underwear hold?

These pretty period undies hold up to 4 tampons’ worth (~20 mL), perfect for moderate to heavy days and even overnight protection. Leak-free confidence all day (and night) long.

Are these lace period undies toxin free?

Yes, our lace period underwear are proudly PFAS and toxin-free, crafted with OEKO-TEX®, GOTS, and GRS-certified fabrics. That means no nasties near your skin, just safe, breathable comfort you can trust.

Are these lace period underwear machine washable?

Yes, our lace period underwear are machine washable! For best care, we recommend popping them inside your laundry bag before tossing them in the washing machine on a gentle, cold cycle. This keeps the delicate lace protected from snagging and helps your undies keep their shape and lush feel longer. Remember to skip fabric softeners and bleach, and always air dry to preserve the leakproof tech and softness.

Free shipping over $70


Straightforward delivery, no surprises at checkout.

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60—Day money Back

Changed your mind? Unworn items can be returned within 30 days.

Local support, when you need it

Have a question? Our team is here to help.

Customers praised these period underwear for combining style with functionality. Reviewers highlighted the "soft, breathable" lace cotton fabric and "great protection." Many noted they're "comfy and chic," with one saying they "work so bloody well" and absorb quickly. The lace detail makes customers "feel special even on your period."

  • So comfy and chic! Soft, breathable, and pretty enough to feel special even on your period.
  • I stayed fresher and cleaner for way longer. They are comfy, look great and work so well.
  • Great protection without sacrificing style. I feel confident and chic, even on my period.
  • 5 stars: 32 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
Some of the reviews shown are from related products the merchant grouped with this one.
L
Louise P.
Game changer

I absolutely love the buttery feel of these period undies, they feel better than other brands I’ve tried so far. They also give extra padding along the seam which offers more protection so you don’t have to worry about any embarrassing moments or leakage!
I also love how they double as boyleg shorts so you can use them for the gym or going on walks & hikes.
I wear a size medium & generally a size 10-12

G
Gaby
My Go-To for hiking on weekends

Wore these on a hike, and they held up incredibly well! No chafing, no leaks, and I stayed comfortable the entire time. I didn’t think period underwear could be this good for outdoor adventures!

M
Marni R.

My daughter has the Fanzy Pantz kit in her locker at school with the wipes and period knickers, ready for the day she get her period, in case it’s at school. This gives her confidence and comfort if it should unfold that way. The undies feel very nice and soft - will stock up on her correct sizewhen she reaches that stage in her life. The kits are so perfect for Mums looking out for their daughters, so when the time comes she feels in control, not embarrassed or overwhelmed. So good.

C
Coralee R.

Absolutely LOVE these boyleg period undies. I started using period underwear as overnight pads were just not enough, they would always leak. But was also struggling to find comfy underwear that don’t leak. These solve both problems, they don’t leak and are super comfy plus don’t have any nasty chemicals. Will be trying out more of the range!

K
Kristi

my daughter was so happy when she recieved her order in the mail.. She has already used one of the heat packs... we couldnt believe how long the heat lasts for will definitely be ordering more..
If anyone is looking at this product and isint sure all i can say is give this product a go you will not be disappointed.

E
Ella W.

So comfy and so much protection!! Absolutely love these 😍

L
Leeann W.
Great period undies

Nice period undies. Work well and are comfortable.

Z
Zara E.
Life changing!

Absolute favorite pair of period undies. My go-to, they are super comfy!

J
Jasmin S.
Would never know there for your period

These lace cotton period undies are so comfy and chic! Soft, breathable, and pretty enough to feel special even on your period. Love them!

J
Jasmin S.
Would never know there for your period

These lace cotton period undies are so comfy and chic! Soft, breathable, and pretty enough to feel special even on your period. Love them!

J
Jasmin S.
The best period undies ever!

These are hands down the BEST period undies I’ve ever owned! They’re super comfy, completely leak-proof, and so stylish you can wear them as shorts—and no one would ever guess they’re period undies! I’m absolutely obsessed!

J
Jasmin S.
Would never know there for your period

These lace cotton period undies are so comfy and chic! Soft, breathable, and pretty enough to feel special even on your period. Love them!

J
Jasmin S.
The best period undies ever!

These are hands down the BEST period undies I’ve ever owned! They’re super comfy, completely leak-proof, and so stylish you can wear them as shorts—and no one would ever guess they’re period undies! I’m absolutely obsessed!

A
Amanda A.
So comfy

I find these undies so comfortable. Way better than wearing a horrible big pad on those heavy days. And the best thing is that you can use them without anything over the top. No one would even know they are underwear.

E
Ellie A.
Practical, but Make It Pretty!

These are for when you want to feel just a little extra, even on your period. The lace detail is so cute, but don’t be fooled—they still bring their A-game when it comes to protection. Perfect for a weekend getaway or a spontaneous night out. Who says you can’t have it all?

E
Ellie A.
Comfy Enough for Couch Days, Reliable Enough for Festivals!

These are the kind of undies that work as hard as you play. Super comfy for lazy mornings after a big night out but strong enough to keep you confident at a music festival. I’ve danced, traveled, and lived in these—they never let me down. A true wardrobe MVP!

p
phoenix K.
Elegance Meets Functionality!

I adore the Lace Cotton Period Underwear! The lace detailing adds a touch of femininity, and the cotton fabric is soft and breathable. They offer great protection without sacrificing style. I feel confident and chic, even on my period. Thank you, Fanzy Pantz, for making period wear beautiful!

p
phoenix K.
Ultimate Comfort Meets Reliability

I absolutely love these Boyleg Cotton Period Underwear! The soft, breathable fabric keeps me comfortable all day, and the boyleg cut provides full coverage without feeling bulky. No leaks, no worries—just pure confidence during my period. A must-have for anyone seeking comfort and peace of mind!

p
phoenix K.
Ultimate Comfort Meets Reliability

I absolutely love these Boyleg Cotton Period Underwear! The soft, breathable fabric keeps me comfortable all day, and the boyleg cut provides full coverage without feeling bulky. No leaks, no worries—just pure confidence during my period. A must-have for anyone seeking comfort and peace of mind!

D
Dianne
Great For Active Lifestyles

These Boyleg Period undies are a great blend of comfort and functionality. The boyleg style doubles as workout shorts, making them ideal for active days, while the breathable cotton and reliable absorbency keep me feeling fresh and secure. These are a game-changer for busy, active lifestyles!

C
Chloe
So cute and better then Modibodi

I probably shouldn't say this but I've always been a Modibodi girl until my best friend told me about these undies. I was really suprised by how quickly they absorbed and I stayed fresher and cleaner for way longer. I didn't think that peiod underwear would be so diferent but they are. Ladies, if you love period undies, I suggest you try these. They are comfy, look great and work so bloody well.

C
Chloe
Ladies, these actually work!!

I've always been a really heavy bleeder over night. It's been a nightmare forever but my friend recently told me about these undies and since I got them, I haven't had to put a towel down on the bed or get up loads of times during the night to change the pad. So I can honestly say, now that I'm using these pants I sleep better and I am not having to wash the sheets as much. And, they are super easy to clean. I just rinse them in the shower during my morning shower and dry them. Then I throw them into the wash bag and machine. Love them.

t
tiana b.
Lace - Moderate

The lace on these make you feel so much more better about yourself when on your period. I love the fact that you can still wear nice underwear with some style while on your period rather than a basic black pair and an uncomfortable pad that moves all the time. As someone who is very heavy with their period, these are perfect and also super comfortable

T
Tiana B.
Boyleg heavy flow

Personally, I love boxer pants and to have them as a pad built in is a life saver. They are so so comfy and I honestly wear them like bike pants around the house sometimes and not having to worry about bleeding through is just another stress free thing to have to worry about. Love Love Love

K
Kimberley D.
Boyleg

These are truly amazing! The Boyleg pants are incredibly breathable. I don't typically wear boyleg style, but these are so comfortable, especially for my heavy nighttime flow. No leaks or worries, just total peace of mind.

K
Kimberley D.
Boyleg

These are truly amazing! The Boyleg pants are incredibly breathable. I don't typically wear boyleg style, but these are so comfortable, especially for my heavy nighttime flow. No leaks or worries, just total peace of mind.

K
Kimberley D.
Lace Cotton period pants

The lace cotton period pants are incredibly breathable, which makes them perfect for all-day wear. I can confidently wear them under a dress and still feel sexy and stylish. They offer complete protection with no leaks, and I appreciate how breathable they are, especially since it's important for my skin. The soft cotton fabric is also a major plus—it's gentle on my skin and never itchy, making them a comfortable choice for long hours

K
Kimberley D.
SUper Comfy - Boyleg Black

These are truly amazing! The Boyleg pants are incredibly breathable. I don't typically wear boyleg style, but these are so comfortable, especially for my heavy nighttime flow. No leaks or worries, just total peace of mind.

R
Rachel
Perfect for overnight

Found these to be the perfect fit (so comfortable) great for the heavy nights, no issues with leakage