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Shopping for someone else but not sure what to give them? Give them the best leakproof gift money can buy with a Proof gift card!
Gift cards are emailed to the recipient and contain instructions for them to redeem at their checkout. Our gift cards have no additional processing fees. Gift cards do not expire.
See all FAQs
Are Proof undies machine washable?
Yes! All Proof undies offer strong protection, but should be washed gently. Machine wash on gentle using cold water and gentle detergent, and hang or lay flat to dry. Check out our Wash & Care Instructions page for more information.
Do Proof undies work for a maternity body?
Yes, they work for all mamas! Proof underwear is a pregnancy must-have: breathable fabric, protection from unexpected leaks, and a low-rise silhouette to accommodate a growing bump.
What is Leak-Loc™ technology?
Our exclusive Leak-Loc™ technology is a patented system that incorporates breathable leakproof materials to prevent leaking and absorbent antimicrobial inner layers to absorb liquid and wick it away to keep things fresh and dry.
How do these control moisture?
Our specially designed Quik-Wick™ lining draws moisture away from the body and helps keep things feeling dry, all day or night.
Proof’s patented Leak-Loc™ technology protects against all of life’s leaks, both big and small. Our undies hold up to 10 teaspoons (that’s 5 full tampons worth!) of liquid. We craft our pairs with rigorously-tested materials, to ensure the highest quality care *down there*.
This is really (really) leakproof underwear
A classic silhouette with discreet leak protection
Basic made better, protection from all kinds of leaks
Cheeky style with built-in leak protection
60 day leak free guarantee
FREE SHIPPING on all orders OVER $50
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
Proof™ provides serious protection from bladder leaks, without added bulk.
Discrete protection with room to accommodate your growing bump.
Designed with new moms in mind, leak protection without the bulk.
Go ahead, break a sweat. Our moisture-wicking fabric also reduces odor.
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
Holds up to 1 Regular Tampon or 2 Teaspoons
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.