Absorbency Levels
Patented protection for leaks of all kinds

super-light Icon

Holds 1 Light Tampon

or Panty Liner

Great For

panty liner replacement

sweat

discharge

light spotting

Regular Lining

Center gusset protection

light Icon

Holds up to 1 Regular Tampon

or 2 Teaspoons

Great For

panty liner replacement

sweat

discharge

spotting

light period leaks

odor reduction

Regular Lining

Center gusset protection

moderate Icon

Holds up to 3 Regular Tampons

or 6 Teaspoons

Great For

moderate period leaks

sweat

light bladder leaks

replace or back up a tampon, pad, or cup

odor reduction

Extended Lining

Extended gusset protection

heavy Icon

Holds up to 4 Regular Tampons

or 8 Teaspoons

Great For

moderate bladder leaks

sweat

heavy period leaks

replace a pad

replace or back up a tampon or cup

odor reduction

Full Lining

Full front to back protection

super-heavy Icon

Holds up to 5 Regular Tampons

or 10 Teaspoons

Great For

moderate bladder leaks

sweat

heavy period leaks

replace a pad

replace or back up a tampon or cup

maximum overnight period protection

odor reduction

Full Lining

Full front to back protection

Don't just take it from us

Read real reviews from Proof users

“So great!! If you’re thinking about getting these just do it! So comfortable and protective. Will be ordering more for sure.”

Amy

“Now my period underwear are my favorite underwear”

Sierra

“I’ve used other period underwear before and I was shocked at how much better these were — I used to bring 2+ pairs of the other brand just in case. I was more than fine with one pair of Proof® underwear!”

ADRIANNE

LEAK-LOC™ TECHNOLOGY icon
LEAK-LOC™ TECHNOLOGY

Our patented technology has multiple layers that lock in your leaks

Breathable + Comfy icon
Breathable + Comfy

Super soft, breathable fabric keeps you comfortable and secure

REALLY (REALLY) DRY icon
REALLY (REALLY) DRY

Our unique interlock lining wicks away moisture for all-day dryness

Decreases Odor icon
Decreases Odor

Antimicrobial fibers reduce odor and help you feel cool and confident