5.0 / 5

The Bikini

Regular price $39 Save $-39
/
Basic made better, protection from all kinds of leaks
HSA/FSA Approved

Holds
4  Tampons or 8 Tsps
black
black
sand
sand
all
all
all
black
black
sand
sand
all
all
all
5.0 / 5

The Bikini

Regular price $39 Save $-39
/
Basic made better, protection from all kinds of leaks
HSA/FSA Approved

AbsorbencyHolds 4 Regular Tampons or 8 Teaspoons
Runs Small True to Size Runs Large

QTY

Only 36 items in stock!

Classic, cute, and super absorbent, our Bikini keeps you leak-free and confident.

With a high leg opening, some of our highest leak coverage and a mid-rise fit, our Bikini is made for breathable, waterproof protection. Created with our multi-layer Leak-Loc™ system, this undie draws moisture away from the body, keeping you dry all day.

Full Lining

The Bikini offers total front-to-back leak protection. Our revolutionary leakproof core spans from the front waistband to the back waistband for complete leakproof coverage.

Great for

heavy periods

moderate bladder leaks

replace a pad

replace or back up a tampon or cup

sweat

odor reduction

Outer: 75% Nylon 25% Spandex

Lining: 100% Cotton

Lining: 100% Polyester

Lining: 69% Cotton 25% Polyester 6% Acrylate

Protection
Full Lining

The Bikini offers total front-to-back leak protection. Our revolutionary leakproof core spans from the front waistband to the back waistband for complete leakproof coverage.

FAQs

See all FAQs

The Bikini does run large. This is why we recommend that customers order one size down from their normal undie size.

Yes! Our moisture wicking lining draws liquid into the ultra-absorbent core. Extra long Leak-Loc™ protection ensures that no leaks escape, even while you snooze.

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.

Yes! Give yourself an upgrade from mesh hospital underwear after baby. The Bikini can hold 8 teaspoons, or 4 tampons worth, of liquid without added bulk.

How Proof Is Made

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. Our manufacturing is OEKO-TEX certified, Prop 65 compliant, and each undie is successfully tested for harmful substances to be body safe.

Explore Our Technology

This is really (really) leakproof underwear

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