Light Leakproof No-Show Bikini
15% off
• So thin, you’ll forget you’re wearing anything. Our original leakproof technology offers a barely-there feel while absorbing about 1 regular tampon or pantyliner worth of liquid.
• Patented bonded edges help prevent against side leaks.
• The carbon cotton gusset top layer wicks away moisture from your skin.
• These underwear feature our signature buttery soft fabric.
• No show construction is designed to be invisible under clothes, including workout leggings.
• Machine washable just like regular underwear.
Our original leakproof technology is perfect for everyday wear (think sweat, discharge and light leaks), backup protection during heavier days or on its own for lighter days.
🇺🇸 Free standard shipping over $100*.
Free expedited shipping over $150*. Duty-free. (after discounts, before shipping + taxes)
For items with a less than 15% discount (before discount codes), you may exchange for another item or return for store credit. No refunds can be accommodated. Items with a greater than 15% discount (before discount codes), are final sale, meaning no returns, exchanges or refunds can be accommodated. No exceptions.
- Melissa G.Verified Buyer3 hours agoRated 5 out of 5 starsAmazing
I love everything about these! From the fit to the colour to how comfortable they are. Hands down my favourite pair…so far!
ComfortRated 5.0 on a scale of 1 to 5Poor ExcellentEffectivenessRated 5.0 on a scale of 1 to 5Poor ExcellentFitRated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeEase of UseRated 5.0 on a scale of 1 to 5Poor ExcellentEase of Use Rated 5.0 on a scale of 1 to 5Poor ExcellentWas this helpful? - Melissa G.Verified Buyer3 hours agoRated 5 out of 5 starsWonderful!
The best underwear I’ve ever worn! They fit so perfect and beyond comfortable! I can wear them with all pants and you can’t see the underwear line! Love them!!
ComfortRated 5.0 on a scale of 1 to 5Poor ExcellentEffectivenessRated 5.0 on a scale of 1 to 5Poor ExcellentFitRated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeEase of UseRated 5.0 on a scale of 1 to 5Poor ExcellentEase of Use Rated 5.0 on a scale of 1 to 5Poor ExcellentWas this helpful? - Jane Van s.Verified Buyer3 hours agoRated 5 out of 5 starsLong time user
I’ve been using the underwear for about 8 years. The fit is great and so much more comfortable. I do find the seams tend to separate faster than any regular underwear that I own but there are still worth it. I recently started wearing the bras which a really comfortable. A good middle option between a wire bra and a low support “athletic’ bra.
ComfortRated 5.0 on a scale of 1 to 5Poor ExcellentEffectivenessRated 5.0 on a scale of 1 to 5Poor ExcellentFitRated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeEase of UseRated 5.0 on a scale of 1 to 5Poor ExcellentEase of Use Rated 5.0 on a scale of 1 to 5Poor ExcellentWas this helpful?
How to wash
Machine Washable: Wash with like colors, cold setting with mild detergent, do not bleach, iron, or dry clean.
Always refer to our Fabric & Care section for best drying practices.
Your leakproof questions, answered.
Our Leakproof technology features a built-in absorbent liner. Depending on the style you choose, the absorbency can range from about 1-17 tsp of liquid. The result? Confident protection from sweat, discharge, periods, and light bladder leaks.
A gusset is essentially a liner. It’s where you’ll find our leakproof technology. It’s built into the crotch section of the underwear.
Coverage at Knix comes in all shapes and sizes. If we’re talking about silhouettes, we go all the way from thongs to boxers.
We also offer high rise styles, like the Leakproof UltraThin No-Show High Rise, that sits just above the natural waist and gives full coverage through the stomach, hip & bum.
For extra liner coverage, look for undies that have an “extra-long liner” (usually 10”-14”), like in our Dream Short. And our Ultra Zones+ also have full bum coverage, too.
Have a suggested style or coverage? Just let us know. We love the feedback!
Many people refer to them as period underwear or period panties. But leakproof underwear covers you for all of life’s leaks, including periods (even your heaviest flows), sweat, light bladder leaks, postpartum, and discharge.
