Multi-Way Stretch
Bump-Friendly Fit
Ultra Comfortable
Absorbent Core
Invisible protection for life's little leaks
Eliminate panty lines and light leaks
A classic silhouette with discreet leak protection
Cheeky style with built-in leak protection
Fully covered, fully comfortable.
A little extra beauty for your booty
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.
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.
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.
Yes! 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!).
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.
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.
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.
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.
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.
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.
With a pair for every flow, you’ll be able to find your Proof™-perfect fit.
Our Patented Leak-Loc™ technology keeps you leak-free learn more
Light
Moderate
Heavy
Super-Heavy
Proof™ provides serious protection from bladder leaks, without added bulk.
Discrete protection with room to accommodate your growing bump.
Super-Light
Designed with new moms in mind, leak protection without the bulk.
Go ahead, break a sweat. Our moisture-wicking fabric also reduces odor.
heavy
super-heavy
Undercover protection for every day of the week.
Perfect for daily discharge, Proof™ keeps you fresh and dry.
For in-between days, these undies keep you spotless all day long.
Holds up to 1 Light Tampon or Panty Liner
panty liner replacement
sweat
discharge
light spotting
odor reduction
Holds up to 1 Regular Tampon or 2 Teaspoons
spotting
light period leaks
Holds up to 3 Regular Tampons or 6 Teaspoons
moderate period leaks
light bladder leaks
replace or back up a tampon, pad, or cup
Holds up to 4 Regular Tampons or 8 Teaspoons
moderate bladder leaks
heavy period leaks
replace a pad
replace or back up a tampon or cup
Holds up to 5 Regular Tampons or 10 Teaspoons
maximum overnight period protection
Your hip and waist measurements are the most important size when finding the perfect fit.
Measure around your body as shown.
Find your waist measure by leaning over to one side. Where your body naturally creases is your where you will place the tape. Measure parallel to the ground.
For your hip measurement, turn to the side and locate the fullest part of your booty. Place the tape around your body, parallel to the floor, around the widest and fullest part of your hips and tush.
If your measurements fall into different size categories, your hip measurement will be most accurate.
Skip to content
