Light Leakproof No-Show Thong
Up to 30% off Select Colors





Light Leakproof No-Show Thong
Up to 30% off Select Colors
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.
• So thin, you’ll forget you’re wearing anything. Our original leakproof technology offers a barely-there feel while absorbing about 1 regular tampon or pantyliner worth of liquid.
• Patented bonded edges help prevent against side leaks.
• 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.
Our original leakproof technology is perfect for everyday wear (think sweat, discharge and light leaks), backup protection during heavier days or on its own for lighter days.
• Mid-rise silhouette minimal bum coverage
• Thin, built-in liner, 7-8.5” long
• Absorbs the same as about 1 pantyliner/regular tampon
• Quick dry 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.
Warehouse Sale Policy:
Sale items with a less than 30% discount are exchange or store credit only. Sale items with a discount of 30% or more are final sale. For non-sale items, our standard return policy applies. Offer excludes bundles, sets, kits and gift cards.
Standard Underwear Policy:
Eligible for return or exchange within 30 days of delivery. Packaging may be removed to wash and wear, ensuring a proper fit.
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? - Wendy N.Verified BuyerPant Size 10Size Purchased MUsage Light Bladder Leaks30 minutes agoPant Size 10Size Purchased MUsage Light Bladder LeaksRated 5 out of 5 starsPerfect
I live these and I think they’ll last a long time. They are made well.
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? - Kimberley D.Verified BuyerHeight 5’9 – 5’11”Pant Size Purchased LUsage Sweat7 hours agoHeight 5’9 – 5’11”Pant Size Purchased LUsage SweatRated 5 out of 5 starsLove these thongs!
Very comfortable and no panty lines!
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?