Heavy Period Kit - Boyshort
Save $26
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Heavy Period Kit - Boyshort
Save $26
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Super Leakproof® No-Show Boyshort (2 Pack)
Color: Black
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Super Leakproof® No-Show Boyshort (2 Pack)
Color: Black
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Super Leakproof® Dream Short
Color: Black
Save $26
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.
Get confident protection for your whole cycle - even your heaviest days - with our Heavy Flow Period Kit. Also includes a Free Wash Bag.
This kit includes:
- 4 Super Leakproof™ No-Show Boyshort (Chosen Colors) - confident protection that looks and feels like regular underwear, absorbing the same as about 3.5 super tampons.
- 1 Super Leakproof™ Dream Short (Chosen Color) - our comfy and confident sleep short designed for overnight period protection.
- 1 Wash Bag
Just choose your size and your colors, and switch from relying on disposable products to wearing incredibly comfortable and machine-washable underwear!
Super Leakproof Boyshort: Full coverage through the hip and bum
Super Leakproof Dream Short: Designed to comfortably hug your body and stay in place overnight, you can wear it as a pyjama bottom or underneath your regular sleep get-up.
🇨🇦 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.
- Denise D.Verified Buyer5 hours agoRated 5 out of 5 starsAmazing
These panties are so soft and comfortable
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? - SamanthaVerified ReviewerYesterdayRated 5 out of 5 starsLeakproof even playing tennis!
I’m not one to typically leave reviews but, seriously, these are amazing. I had surgery and was unable to use other menstrual products during recovery. I’m a tennis player, and was able to play multiple matches, running and jumping around, without a single drop of a leak. I was so shocked! Sure, I could feel it a little, but didn’t have a bit of irritation.
I wore an XS and I’m 5’5, 135 with 34” hips. I usually wear a 0-2 in pants. These are quite stretchy (and if you’re wearing them for activities, I think a snug fit is ideal).
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? - KVerified Buyer2 days agoRated 5 out of 5 starsGame Changer
I admit that I was skeptical that these would work but have been pleasantly surprised - such a game changer. No more setting alarms to change tampons in the middle of the night, slept peacefully all night long! Highly recommend. Fit true to size.
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?
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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.
*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
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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!