Leakproof No-Show Thong
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 peace of mind protection, the ultra-thin liner absorbs about the same as 2.5 super tampons or 1 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.
• Mid-rise silhouette
• Minimal bum coverage
• Built-in liner, 8-9" long
• Absorbs the same as about 1 regular pad or 2 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.
(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.
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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.
- Jade7 months agoRated 5 out of 5 stars5 Stars
I have been a Knix girl for a few years now (I usually buy the essential no show thongs) - this is my first time buying the light leakproof styles, I ordered simply because I liked the colours & thought I'd give them a try! One thing I noticed is they're definitely more snug than the essential line, but I know that's because they design them that way for the leakproof aspect. I don't mind because I know they will loosen a little & form to my body with wear. I may be converted to the leakproof now, I appreciate that it will absorb excess moisture. Knix is my go to for all underwear, you literally can't feel them while you're wearing them. Also invisible under tight clothes which is a must.
FeaturedWas this helpful? - 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 starsLove my knix!
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 (this applies to both the thongs and the overnight high rise ones).
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? - 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 starsLove knix! Highly recommend!!
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 (this applies to both the thongs and the overnight high rise ones).
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?
