Extra Heavy Period Kit - Bikini
Save $27







Extra Heavy Period Kit - Bikini
Save $27

Super Leakproof® No-Show Bikini (2 Pack)
Color: Black

Ultra Leakproof Zones+® Bikini (2 Pack)
Color: Black

Super Leakproof® Dream Short
Color: Black
Save $27
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.
This kit includes:
- 2 pairs of Super Leakproof™ Bikini (Chosen Colors) - confident protection that looks and feels like regular underwear, absorbing the same as about 3 super tampons.
- 1 pair of Super Leakproof™ Dream Shorts (Chosen Color) - our comfy and confident sleep short designed for overnight period protection.
- 2 pairs of Ultra Leakproof Zones+ Bikini (Chosen Colors) - Our most absorbent underwear yet, featuring a breakthrough in leakproof technology absorbs the same as about 9 super tampons! A whole new level of machine-washable protection from heavy periods and light bladder leaks, with extended coverage zones designed to give you protection where you need it most.
Just choose your size and your colors, and switch from relying on disposable products to wearing incredibly comfortable and machine-washable underwear!
🇨🇦 Free standard shipping over $100.
Free expedited shipping over $150.
(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.
Need more info? Click here


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!
- Emily P.Verified Buyer1 hour agoRated 5 out of 5 starsGreat option!
Love these, I did order the longer pair as they ride up a little on my things but overall a great option esp for sleeping!
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 ExcellentWas this helpful? - My N.Verified Buyer12 hours agoRated 5 out of 5 starsLove it
I can sleep better at night now :)
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 ExcellentWas this helpful? - Barbara M.Verified Buyer19 hours agoRated 5 out of 5 starsReally love these
I really love these. They are so comfortable, soft, fits well well, and effective.
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 ExcellentWas this helpful?