Super Leakproof® No-Show Boyshort
Mix & Match: Buy 3+ Save 10%, 6+ Save 20%
• Our super leakproof technology is great for heavy days and worry-free protection.
• Absorbs about the same as 4 super tampons or 2 regular pads worth of liquid.
• Switch from relying on disposable products and stop worrying about leaks.
• Patented bonded edges help prevent against side leaks.
• Modal top layer of the liner helps move moisture away from your skin.
• These underwear feature our signature buttery soft fabric that is invisible under clothes, including workout leggings.
• Machine washable just like regular underwear.
Get the protection you want from periods and light bladder leaks while feeling comfortable and worry-free.
• Extra coverage through the hip & bum
• Mid-rise silhouette
• Built-in liner, 9" long
• Absorbs the same as about 1.5 regular pads or 3.5 super tampons
• Quick dry extended gusset
• Soft, stretchy PerformaStretch® fabric
• Conforms to your body
The fabric is designed to feel snug at first but relax with wash and wear for a perfect fit.🇺🇸 Free standard shipping over $100*.
Free expedited shipping over $150*. Duty-free. (after discounts, before shipping + taxes)
Within 30 days of delivery, you may exchange for another size, style or store credit. We’re unable to provide refunds on underwear.
Our Absorbency Guide
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.
- Baljit C.Verified Buyer8 hours agoRated 5 out of 5 starsGood
Excellent product
ComfortRated 4.0 on a scale of 1 to 5Poor ExcellentEffectivenessRated 4.0 on a scale of 1 to 5Poor ExcellentFitRated 1.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeEase of UseRated 4.0 on a scale of 1 to 5Poor ExcellentWas this helpful? - EvelynVerified Buyer2 weeks agoRated 5 out of 5 starsAmazing.
So pretty and feel like I'm not wearing anything, so feminine and just amazing, definitely ordering more.
ComfortRated 5.0 on a scale of 1 to 5Poor ExcellentFitRated -1.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeEffectivenessRated 5.0 on a scale of 1 to 5Poor ExcellentEase of UseRated 5.0 on a scale of 1 to 5Poor ExcellentWas this helpful? - Linda H.Verified Buyer2 weeks agoRated 5 out of 5 starsSuper leak boyshort
Great!! Better than I expected!!!
ComfortRated 5.0 on a scale of 1 to 5Poor ExcellentEffectivenessRated 5.0 on a scale of 1 to 5Poor ExcellentSizingRated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeWas this helpful?