Drop-Stop
Interlock lining creates an absorbent center layer that pulls in moisture
Quik-Wick
Quick-dry lining pulls moisture away from your body to help provide a dry, comfortable feeling
Seep-Shield Liner
A thin but powerful liner with exceptional leak-resistant protection and breathable comfort
Antimicrobial fibers are custom knit to create a super absorbent center layer that inhibits the growth of bacteria and fights odors
A thin but powerful liner that has exceptional leak proof® protection with breathable comfort
No-Flo
Ultra-light leak proof® technology is fused to buttery soft, waterproof fabric for double the protection against leaks
Leak-Loc® Edges
Leak proof® and reinforced to lock in moisture and prevent leakage
Antimicrobial fibers are custom knit to create TWO super absorbent center layers that inhibit the growth of bacteria and fights odors
Extended protection
Extra long leak proof® coverage from front to back keeps leaks locked in everywhere
Antimicrobial fibers are custom knit to create THREE super absorbent center layers that inhibit the growth of bacteria and fights odors
Extra long leak proof® coverage from front to back keeps leaks locked in everywhere.
Our patented technology has multiple layers that lock in your leaks
Super soft, breathable fabric keeps you comfortable and secure
Our unique interlock lining wicks away moisture to help keep you dry
Antimicrobial fibers reduce odor and help you feel cool and confident
Proof's patented technology can hold up to 5 tampons or 10 tsp of liquid. Don't believe us?
See the proof for yourself.
Read Real Reviews
Amy
Bought Leakproof Brief
Sierra
Bought Leakproof Thong
Adrianne
Bought Leakproof Hipster Underwear
We've got answers
Proof undies are designed for comfort and all-day wear.
Our Super-Light, Light and Moderate undies feel just like your favorite pair of regular underwear. Our Heavy and Super-Heavy styles may feel slightly more substantial due to their highly absorbent construction, but they will still feel super comfortable.
Most importantly, you’ll love the extra protection.
In a word, yes!
Our super heavy styles hold 5 tampons or 10 teaspoons of liquid and can replace panty liners and pads as well as replacing or backing up tampons and cups.
If you're unsure about switching to Proof completely, you may feel more comfortable using Proof undies as a back-up for your menstrual cup or tampon.
Panty liners are a thing of the past with Proof. Welcome to modern leak protection - no liners needed!
Learn about leak levels and what pair is best for you
Build a bundle of favorites for every day of the week
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.
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