Skip to product information
1 of 7

Mary – Postpartum Period Underwear • Very Heavy Flow

Mary – Postpartum Period Underwear • Very Heavy Flow


Regular price $45.00

Quantity: 1 pair
Size: XS

In Stock

Materials

  • Body: 92% modal, 8% spandex
  • Liner: 95% GOTS-certified organic cotton, 5% spandex
  • Absorbent core: 90% polyester, 10% nylon
  • Leak-proof layer: breathable TPU membrane
  • Independently lab-tested by QIMA: PFAS-free, REACH compliant

Care

  • Rinse in cold water after wearing
  • Machine wash cold (max 86°F), gentle cycle, in a wash bag
  • No fabric softener, no bleach
  • Hang dry – do not tumble dry or iron
  • 30-Day Money-Back Guarantee
  • Ships from the USA · 2-5 Days
  • HSA / FSA Eligible
View full details

GOTS Organic Cotton •

5 Ultra-Thin Layers •

Lab-Tested PFAS-Free •

GOTS Organic Cotton •

5 Ultra-Thin Layers •

Lab-Tested PFAS-Free •

GOTS Organic Cotton •

5 Ultra-Thin Layers •

Lab-Tested PFAS-Free •

GOTS Organic Cotton •

5 Ultra-Thin Layers •

Lab-Tested PFAS-Free •

GOTS Organic Cotton •

5 Ultra-Thin Layers •

Lab-Tested PFAS-Free •

GOTS Organic Cotton •

5 Ultra-Thin Layers •

Lab-Tested PFAS-Free •

GOTS Organic Cotton •

5 Ultra-Thin Layers •

Lab-Tested PFAS-Free •

GOTS Organic Cotton •

5 Ultra-Thin Layers •

Lab-Tested PFAS-Free •

GOTS Organic Cotton •

5 Ultra-Thin Layers •

Lab-Tested PFAS-Free •

GOTS Organic Cotton •

5 Ultra-Thin Layers •

Lab-Tested PFAS-Free •

GOTS Organic Cotton •

5 Ultra-Thin Layers •

Lab-Tested PFAS-Free •

GOTS Organic Cotton •

5 Ultra-Thin Layers •

Lab-Tested PFAS-Free •

Flow. Protect. Go.

Now engineered with 5 ultra-thin, high-absorption layers for unmatched protection.

Maximum Absorbency.

Designed for postpartum recovery and very heavy flow, this ultra-absorbent underwear provides reliable protection when you need it most. Perfect for postpartum bleeding, heavy periods, and every moment when confidence and comfort are essential.

5 Ultra-Thin Layers. Maximum Protection.

A refined 5-layer system with a breathable top layer, organic cotton comfort, a high-performance absorbent core, and a leak-proof barrier

Flow. Protect. Go.

Now engineered with 5 ultra-thin, high-absorption layers for unmatched protection.

Invisible. Odor Control. Lab-Tested PFAS-Free.

Seamless, skin-hugging design that stays invisible under clothing, independently lab-tested by QIMA: PFAS-free, free of harmful substances, and gentle on sensitive skin.

Up to 12 Hours of Protection. 10-Second Change.

Up to 12 hours of reliable protection, plus a 10-second quick change — this is period comfort redefined. No stress, no leaks, just total freedom.

Smart Undies. Smart App.

Spot-on period tracking


Personalized forecasts for your flow and ovulation


Real-time wear tracking so you always know when it’s time to change


Smart reminders throughout your cycle


A system that learns from you and gets better every month


Symptom tracking to help you understand your body like never before

Get the Smart App (100% Free)
  • Created with menstrual health specialists

Real Users. Real Results.

+97%

Report feeling more secure during postpartum bleeding thanks to ultra-high absorbency designed to handle very heavy flow, day and night — without stress or frequent changes.

+95%

Say they feel more comfortable and protected during recovery with soft, breathable, skin-friendly materials adapted to sensitive postpartum needs.

+94%

Experience reliable leak protection, even when resting, moving, or sleeping — ideal for the first weeks after childbirth and very heavy flow days.

+91%

Report a better-managed recovery and reduced mental load thanks to the Orpair App — a free companion app included with your protection that helps you track symptoms, recovery progress, and receive personalized reminders to change at the right time.

Us vs Others

ORPAIR. Others
Postpartum & very heavy flow protection
Ultra-high absorbency, day & night
Real-time wear tracking
100% Free Smart Period App
One ultra-thin protection for every flow
TRY IT RISK-FREE FOR 30 DAYS
  • 30-Day Money-Back Guarantee
  • Easy Size Exchanges

Customer Reviews

Overall rating: 4.9 / 5 from 146 reviews.

Customer photo review of Mary – Postpartum Menstrual Protection Underwear

I'm extremely happy with my period underwear! I can't believe how much they absorb, and I felt comfortable and, above all, dry all day long! I bought 5, but if I need more, I'll definitely get the same ones again.

Mary – Postpartum Menstrual Protection Underwear

Customer photo review of Mary – Postpartum Menstrual Protection Underwear

Amazing and reassuring. For the past 3 months, my periods have been longer and heavier than ever. My old period underwear wasn't enough anymore, even though it was ultra absorbent. I searched a lot for other period underwear, and I came across Orpair. It's the only shop today that offers this type of underwear for super heavy periods and postpartum bleeding. I went straight for the pack of 5, with 2 free, and I'm extremely satisfied. Now I can feel relaxed all day long without changing.

Mary – Postpartum Menstrual Protection Underwear

Very soft and very pleasant to wear. It doesn't squeeze around the belly but adapts to your current shape. I have a heavy, sometimes hemorrhagic flow, and I finally dare to go out or go to work in my period underwear.

Mary – Postpartum Menstrual Protection Underwear

The period underwear more than does the job, and it's pleasant to wear on top of that. I'm amazed at how fast it absorbs. I didn't expect it to be so instant!

Mary – Postpartum Menstrual Protection Underwear

Very satisfied with this period underwear for the end of my pregnancy. The fabric is soft and pleasant to wear. It comes up nicely and stays in place around the belly.

Mary – Postpartum Menstrual Protection Underwear

Hi, I'm getting back to you as promised... I've never slept as well as I do with your period underwear, and yet I have really heavy periods ++++ Thank you to the whole team You're the best 🫶🫶🫶

Mary – Postpartum Menstrual Protection Underwear

I've been wearing period underwear for several years now. I've tried many brands, and I decided to give Orpair a shot after seeing an influencer. I have VERY heavy periods, and to this day, no brand has managed to survive the 2nd and 3rd days of my period. I didn't have much hope, but this underwear exceeded my expectations! For the first time, I've found underwear that can handle the worst part of my cycle. I'm very satisfied and relieved. So THANK YOU!

Mary – Postpartum Menstrual Protection Underwear

The postpartum period underwear is very comfortable, very absorbent, and doesn't squeeze around the belly. I recommend it after giving birth or getting a copper IUD!

Mary – Postpartum Menstrual Protection Underwear

Great! Nothing to say! Perfect comfort! I wouldn't change it for anything in the world! And the customer service is just top-notch Bravo 🎈 I recommend it 100000%

Mary – Postpartum Menstrual Protection Underwear

I had ordered a size that was too tight, and I was able to quickly get an exchange from customer service. My daughter, who had leaks with other brands (S..R...) despite their "super" absorption, now feels very comfortable and confident in the postpartum period underwear and is asking me to buy more, because it lets her get through a school day with total peace of mind. So, a pretty positive first experience with the brand.

Mary – Postpartum Menstrual Protection Underwear

After trying 3 brands, I found this period underwear for hemorrhagic/postpartum flow, and I'm very happy with it. Even though, unfortunately, it only lasts (for me) 7 to 8 hours max, that's still a relief, because with other brands I was down to 3-4 hours. So I'm very happy. They're also very comfortable and soft. Received quickly and very well packaged. I ordered 2 sizes up because during this time you're always a little bloated and you need to be comfortable and not squeezed, and also because with other brands, after several washes (at 86°F), they shrink a bit, so just in case... They're super stretchy and fit well despite those 2 extra sizes, and I still don't look like a sack of potatoes 😅. My only wish would have been a version that comes down a little further at the crotch (since that's the first spot that overflows, because that's mainly where all the flow goes), while staying very stretchy so the seam doesn't bother you over time, since that's the first spot that overflows. So I'm very happy with this find. Thank you, it's a relief not to have to think about it all the time.

Mary – Postpartum Menstrual Protection Underwear

I had already bought period underwear for heavy flow, but I had a few leaks. Although a little disappointed, I gave it another try with the period underwear for hemorrhagic flow, and this time it was a great experience because I had no leaks at all. Really suited to my flow, and the size is right. The feel of the hemorrhagic underwear is much more pleasant than that of the Julie ones I ordered previously. I haven't had the chance to test the period boyshorts yet.

Mary – Postpartum Menstrual Protection Underwear

Built for your heaviest days.

TRY IT RISK-FREE FOR 30 DAYS
    `
  • 30-Day Money-Back Guarantee
  • Ships from the USA · 2-5 Days

FAQ

Yes. Period underwear is HSA/FSA eligible under the 2020 CARES Act. Pay with your HSA/FSA card at checkout, or submit your ORPAIR invoice to your plan administrator for reimbursement. If in doubt, check with your plan.

Yes. This model is specifically designed for postpartum recovery and very heavy flow, offering ultra-high absorbency and reliable protection during the first weeks after childbirth. It is not a medical device: if you have any concern about postpartum bleeding, please consult your healthcare provider.

Our postpartum underwear is designed to handle very heavy flow and postpartum bleeding, helping you stay dry and protected day and night without the discomfort of bulky disposable solutions.

Orders ship from our US warehouse within 1 business day and arrive in 2–5 business days. No customs fees. Free shipping on orders over $99.

You are covered by our 30-Day Money-Back Guarantee. If you are not satisfied, contact us within 30 days of delivery and we will refund you according to our return policy.

Find your size

Measure around the fullest part of your hips (where you are widest), feet together, tape snug but not tight. Pick the size that matches your hip measurement.

SizeHips (cm)Hips (in)US size
XS85-9033.5-35.52
S91-9636-384
M97-10238-406
L103-10840.5-42.58
XL109-11443-4510
2XL115-12045-4712
3XL121-12647.5-49.514
4XL127-13250-5216
5XL133-13852.5-54.518

True to size: we recommend taking your usual size. Between two sizes? Go for the larger one for extra comfort (e.g. a tight M → choose L).