Leakproof UltraThin No-Show High Rise
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.
• Our newest leakproof innovation provides more absorbency without the bulk.
• Great for leak protection, the ultra-thin liner absorbs about the same as 2.5 super tampons or 1 regular pad’s worth.
• Our patented 360 LeakSeal™ technology locks in leaks at every edge.
• 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.
Get the protection you want from periods and light bladder leaks while feeling comfortable and worry-free.
• Sits just above the natural waist
• Full coverage through the stomach, hip & bum
• Higher cut leg opening
• Ultra-thin, built-in liner
• Absorbs about 2.5 super tampons’ worth of liquid
• Quick dry gusset
• Soft, stretchy fabric
• Conforms to your body
• Bonded seams for a smooth look, no dig in
• Machine washable just like regular underwear.
The fabric is designed to feel snug at first but relax with wash and wear for a perfect fit.🇨🇦 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.
*Offer valid on select underwear styles on knix.com and knix.ca, while supplies last. When you purchase three or more eligible styles from the same category, you’ll receive the corresponding offer:
Light: 3 for $60
Heavy: 3 for $75
Overnight: 3 for $99
Exclusions: Sale items, Leakproof CoreLove High Rise, Leakproof Modal Rib Boxer Brief, Luxe Modal Leakproof Sleep Boxer, Leakproof Cotton Modal Bikini, Leakproof Cotton Modal High Rise, all Thigh Saver styles.
Discount is automatically applied at checkout and is based on eligible items in your order. No rain checks or price adjustments on previous purchases.
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.
- VittoriaVerified BuyerHeight <5’5”Pant Size 6Pant Size Purchased MUsage Period Back-Up12 hours agoHeight <5’5”Pant Size 6Pant Size Purchased MUsage Period Back-UpRated 5 out of 5 starsKnix is the best!
I swear by Knix underwear during my period (high rise for overnight, thongs for daytime). I have been using them for the past 5 years and my original pairs are still perfect and show no signs of wear (I've bought extra now to keep at my mom's house for when I'm travelling, etc) The medium fits perfectly - not tight at all but hugs perfectly (and is not restrictive in any way - something I'm very sensitive about during my period!) For reference - I'm 5'4 and 127 lbs (and have a decent shaped booty ;)). On heavier days, I wear these with a diva cup. On my easier flow days, I can wear these alone with no issues.
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? - Virginia M.Verified BuyerPant Size Purchased MUsage Light Bladder LeaksYesterdayPant Size Purchased MUsage Light Bladder LeaksRated 5 out of 5 starsLove them
Fit wonderfully.
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? - Helene M.Verified BuyerHeight <5’5”Pant Size 10Pant Size Purchased SUsage Light Bladder Leaks4 days agoHeight <5’5”Pant Size 10Pant Size Purchased SUsage Light Bladder LeaksRated 5 out of 5 starsLove this Buttercup colour!
My favourite colour so far -- and I have a LOT of knix! My husband loves this shade of yellow too and he calls me "Buttercup" whenever he sees me in these. Fun!
ComfortRated 5.0 on a scale of 1 to 5Poor ExcellentEffectivenessRated 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 LargeEase of UseRated 5.0 on a scale of 1 to 5Poor ExcellentWas this helpful?
