Light Leakproof UltraThin No-Show Thong
Bundle & Save: 3 for $60
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 regular tampons or 2 pantyliners 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 lower than the natural hip bone
• Minimal coverage through the hip & bum
• Ultra-thin, built-in liner
• Absorbs about 2 regular tampons’ worth of liquid
• Quick dry gusset
• Soft, stretchy fabric
• Conforms to your body
• Bonded seams for a smooth look, no dig in
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: 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 and Last Call items.
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.
- Christine37 minutes agoRated 5 out of 5 stars5 Stars
Perfect fit and dreamy colour.
Was this helpful? - KK G.Verified BuyerHeight 5’9 – 5’11”Pant Size 4Pant Size Purchased MUsage Period Back-Up3 weeks agoHeight 5’9 – 5’11”Pant Size 4Pant Size Purchased MUsage Period Back-UpRated 5 out of 5 starsComfy
Love these 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? - Elizabeth H.Verified BuyerHeight 5’6 – 5’8”Pant Size 8Pant Size Purchased LUsage Primary Period Protection3 weeks agoHeight 5’6 – 5’8”Pant Size 8Pant Size Purchased LUsage Primary Period ProtectionRated 5 out of 5 starsLife changing
These are perfection as soon as my period starts to slow. I have fewer cramps and I can wear all the clothes I'd normally wear without feeling self conscious about pantylines or leaking. I can't believe I didn't buy these sooner!
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?
