Name: Leakproof Thong
Brand: proof.
SKU: PFTG1001SND:XS
Price: 25.0 USD
Availability: InStock

Holds

up to 1 Tampon or 2 Tsps

AbsorbencyHolds up to 1 Regular Tampon or 2 Teaspoons

Color Sand

Black

Sand

QTY

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Unseen but powerful, our thong underwear works for your period and leaks…Hooray!

Our breathable, buttery soft microfiber in a low-rise silhouette lets you eliminate panty lines while having a backup for your leaks. Minimal coverage that still includes our multi-layer Leak-Loc™ system.

Regular Lining

The Thong features an invisible leakproof core in the gusset. You’ll be comfortable and protected with our soft and slim multi-layer core.

Great for

light periods

spotting

replace a panty liner

back up a tampon

discharge

sweat

odor reduction

Outer: 75% Nylon 25% Spandex

Lining: 100% Polyester

Lining: 69% Cotton 25% Polyester 6% Acrylate

Protection

Regular Lining

The Thong features an invisible leakproof core in the gusset. You’ll be comfortable and protected with our soft and slim multi-layer core.

FAQs

See all FAQs

The Thong is equipped with Leak-Loc™ technology and light absorbency that holds up to 1 regular tampon or 2 tsp. That makes it perfect for light bladder leaks or periods, spotting, discharge, or sweat. The unique moisture-wicking lining and antimicrobial fibers wick moisture away from the body and inhibits the growth of bacteria while fighting odor.

Our leakproof, period-proof thong was designed with comfort in mind. Created with buttery-soft, stretch fabric that moves with the body and a thin, flexible gusset keeps you comfortable, day or night.

We typically advise buying your normal underwear size for the thong. For a more generous, high-rise fit, you may like a size up. For more size guidance, check out our size guide.

Oh yes! The Thong is great for everyday wear, as it provides light ‘back up’ protection for all of those in-between days. Smooth, seamless edges vanish under clothing to provide a sleek look under clothing.

The leakproof thong undie was designed with light periods in mind. If you have a low flow, the thong will pull moisture away from the body and into the Leak-Loc™ core which holds up to 1 regular tampon or 2 tsp.

Don't just take it from us, hear why real women love Proof...

See The Proof

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.

Explore Our Technology

This is really (really) leakproof underwear

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My Coachella Lifesaver

What a lifesaver this leakproof nude thong is - I packed 3 days of outfits in light/white bottoms for Coachella and then my heart sank when I realized my period was going to come any day that weekend. Even with tampons I leak on my first days, so ordering 3 of these nude thongs SAVED me! I was able to still wear all 3 outfits without the worry of staining my clothes, and they stayed dry when (sure enough) I did start to leak on day 2 . Could not recommend this thong enough-especially as a summer staple when basically every outfit calls for no-show nude underwear!

Can't Live Without Them!

I wear these everyday! I don't leave my house without them. I'm a 56 year young women who has terrible bladder leakage. I walk I leak, I laugh I leak, I stand up I leak! It is so frustrating. These leakproof thongs are the real deal! I figured being a thong there is no way. OH YES THERE IS!! Trust me! Proof is the proof that I needed. Just try one pair, I was hooked.

Where have these been all my life?

No more liners and waste for me! As someone with a chaotic and irregular cycle my whole life, it was always a guessing game when shark week would start and liners were sadly a daily must as a safety measure. These have lasted me several months so far, with no sign of wear on them yet. I love them and am buying another weeks supply to make them a permanent edition.

I'm A Believer

Yes, I was hesitant at first, however, after multiple (let me check my panties) breaks, I was pleasantly surprised of how absorbent Proof period panties are. Not only were they comfy, I didn’t deal with that pad lining in the back of my outfit. Not to brag, but I got mine and I’m a believer. ❤️

Leakproof Thong