Leakproof Cotton Bikini
Bundle & Save: 3 for $75
Leakproof Cotton Bikini
Bundle & Save: 3 for $75
Knix period underwear and pads are now sales tax-free in Canada.* We celebrate improvements to the accessibility and affordability of essential period care products.
• Great for daytime protection, the ultra-thin liner absorbs about the same as 3 super tampons or 1.5 regular pads worth of liquid.
• The innovative floating gusset provides leak protection from every angle.
• The cotton-spandex blend feels luxurious against your skin.
• Certified according to OEKO-TEX® STANDARD 100, Product Class I : HK020 246396 TESTEX
• Machine washable just like regular underwear.
Get the protection you want from periods and light bladder leaks while feeling comfortable and worry-free.
• Classic mid-rise silhouette
• Medium hip & bum coverage
• Absorbs the same as about 3 super tampons’ worth of liquid
• Quick dry liner
• Soft, cotton-spandex blend
🇨🇦 Free standard shipping over $100.
(after discounts, before shipping + taxes) All items ship from within Canada.
Within 30 days of delivery, you may exchange for another size, style or store credit. We’re unable to provide refunds on underwear.
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.
*Period underwear and pads are exempt from federal sales tax in Canada. They are also exempt from most provincial / harmonized sales taxes. But are subject to the following provincial sales tax rates which will apply to orders shipped to the following provinces and to orders purchased in retail stores located in the following provinces: British Columbia and Manitoba: 7% PST; Saskatchewan: 6% PST.
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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!
- Susan W.Verified BuyerPant Size 4Size Purchased SUsage Light Bladder Leaks23 minutes agoPant Size 4Size Purchased SUsage Light Bladder LeaksRated 5 out of 5 starsBest for leak protection
I tried the others. They were thin and were wet next to my skin. These feel secure and comfortable. The relatively thick pad at the crotch absorbs the liquid and leaves the skin on my backside dry.
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? - Jodi C.Verified BuyerPant Size 22Size Purchased XXLUsage Light Bladder Leaks35 minutes agoPant Size 22Size Purchased XXLUsage Light Bladder LeaksRated 5 out of 5 starsVery Comfortable
They are great! Very comfortable and true to size.
ComfortRated 5.0 on a scale of 1 to 5Poor ExcellentEffectivenessRated 4.0 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? - Frances Y.Verified BuyerPant Size 16Size Purchased XLUsage Period Back-Up3 hours agoPant Size 16Size Purchased XLUsage Period Back-UpRated 5 out of 5 starsPeace of mind
These have given me the peace of mind I need when I am having my period. Sometimes my period is very heavy and a tampon is not enough. This leaves me worried the entire time that it is going to leak and I’ll have embarrassing leakage. I wear these panties with my tampon and know I am safe from the embarrassment. I also wear them at night to prevent leakage from getting on my sheets as has happened many times before. In the past my sleep has been interrupted by constant worry that I won’t wake up to change my tampon, I don’t have that concern when I wear these underwear. They are comfortable and for the most part I can’t tell I am wearing underwear that are different from my non-leakproof underwear. I wish I’d spent the extra money years ago to have this peace of mind.
ComfortRated 4.0 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?