Maternity Underwear For Leak Protection

Protection for all of the unexpected leaks that come along with pregnancy. Shop our collection of triple patented maternity panties.

Multi-Way Stretch

Bump-Friendly Fit

Ultra Comfortable

Absorbent Core

Rated 4.8 out of 5
Based on 36 reviews
Leak-resistant Everyday Undie
Holds up to 1 Light Tampon or Panty Liner

Invisible protection for life's little leaks

Rated 5.0 out of 5
Based on 39 reviews
Leakproof Thong
Holds up to 1 Regular Tampon or 2 Teaspoons

Eliminate panty lines and light leaks

Rated 4.6 out of 5
Based on 26 reviews
Leakproof Brief
Holds up to 3 Regular Tampons or 6 Teaspoons

A classic silhouette with discreet leak protection

Rated 4.9 out of 5
Based on 24 reviews
Leakproof Lace Cheeky
Holds up to 3 Regular Tampons or 6 Teaspoons

Cheeky style with built-in leak protection

3 Different Absorbency Levels

Rated 5.0 out of 5
Based on 4 reviews
Leak-resistant Everyday Bikini
Holds up to 1 Light Tampon or Panty Liner

Invisible protection for life's little leaks

Rated 4.4 out of 5
Based on 18 reviews
Leakproof High Waisted Brief
Holds up to 3 Regular Tampons or 6 Teaspoons

Fully covered, fully comfortable.

Rated 5.0 out of 5
Based on 8 reviews
Leak Proof® Lace Back Bikini
Holds up to 3 Regular Tampons or 6 Teaspoons

A little extra beauty for your booty

Leakproof Maternity Underwear

Maternity panties designed with built-in leak protection for all of those unexpected leaks that come along with motherhood. Designed with Leak-Loc™ technology and a wide range of absorbencies to keep you covered during every trimester of pregnancy.

Protection for every stage of pregnancy

Pregnancy brings a whole new set of challenges, but Proof makes sure leaking isn’t one of them! Whether it’s spotting, discharge, or leaks from the baby sitting on your bladder… we’ve got you covered.

How do leakproof maternity undies work?

Proof period underwear for pregnancy draw liquid into the absorbent core. Buttery soft, stretch fabric moves with your body, and non-restrictive low rise waistband accommodates a growing bump in comfort.

Top FAQs

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Are Proof leak protective undies good for pregnancy?


We’ve curated a collection for pregnancy with non-restrictive, low-rise silhouettes to accommodate a growing bump and leak-protective core to keep you dry and protected without added bulk. The absorbent core helps with any little leak that accompanies pregnancy - whether it’s discharge, sweat, or a little bladder leak from when baby kicks your bladder (it happens to us all!).

What is the best style of underwear for pregnancy?

Pregnancy comes with a lot of changes - a growing bump, extra sweat, and even unexpected leaks. We designed a collection of underwear specifically for pregnancy to keep you comfortable and dry for the whole nine months (and beyond!).

The best underwear for pregnancy have a non-restrictive, low-rise silhouette which accommodates for a growing bump and widening hips. Breathable stretch fabric is super important, as well, to move with your body as it changes. Last but not least, we designed our collection of maternity underwear with added protection for your peace of mind. Proof maternity underwear feature a range of built-in leak-protective linings that pull moisture away from the body - whether it’s sweat, discharge, or light bladder leaks that accompany pregnancy.

What size should I order in Proof maternity undies?

Our maternity collection features multi-way stretch fabric and non-restrictive waist bands to accommodate for that beautiful bump! Most mamas find they are comfortable in their typical size - but when in doubt, check out our size guide for a perfect fit.

Are Proof leakproof undies washable?

Washing Proof maternity underwear is easy! Proof undies feature strong protection, but should be washed gently. Simply toss in the washing machine on a delicate cycle, using cold water and mild detergents. Hang or lay flat to dry. No washing machine? Hand washing in cold water with a gentle detergent works great, too!

More helpful tips to care for your pair:

-Don’t wring or twist your undies - be gentle when washing Proof

-Hot water, harsh detergents, and bleach can damage the absorbent technology in Proof undies, so be sure to use cold water and mild detergent

-Hang or lay flat to dry - do not put in the dryer

-Proof undies have a super absorbent core that can take between 6 and 24 hours to dry. Heavier absorbency pairs have more layers of absorbent material, and will take longer to dry than our light pairs. To expedite the drying process, blot away excess moisture from the gusset before laying flat or hanging to dry.

-Want a refresh? To make your period undies fresh and remove any lingering odor, use a few drops of vinegar or tea tree oil during the rinse cycle of your wash - voila! So fresh and so clean.

What makes Proof maternity undies different from regular underwear?

Our undies fit and feel just like regular panties, but feature a super absorbent core to keep you protected from leaks and a non-restrictive waistband and buttery soft stretch fabric to keep you feeling oh-so-comfy for the whole nine months of pregnancy.

Are Proof maternity undies seamless?

Our maternity underwear are designed to provide discreet protection without added bulk. Some of our undies are designed with seamless edges, while others have smooth, bonded edges. For an invisible look under clothing (maternity leggings included!) we recommend The Everyday Undie, The Thong, or The Brief.

Can I wear The Thong while pregnant?

Definitely! The Thong by Proof is perfect for pregnancy, as the low rise silhouette and non-restrictive stretch fabric moves with a growing bump. Added protection is excellent for all of those little leaks that come along with pregnancy, and keep you protected without added bulk. For an excellent fit during pregnancy, you may want to size up one size.

Go with your flow

We've designed period underwear for every phase of your flow, from surprise light spotting in-between periods to super heavy periods and beyond.