Leakproof UltraThin No-Show Bikini
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.
• 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.
• Classic mid-rise silhouette
• Medium hip & bum coverage
• Ultra-thin, built-in liner
• Absorbs about 2.5 super tampons’ worth of liquid
• 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.
- Michael C.Verified BuyerPant Size 10Size Purchased LUsage Light Bladder Leaks4 minutes agoPant Size 10Size Purchased LUsage Light Bladder LeaksRated 5 out of 5 starsLeakproof
I love the fit of these!! And they work so 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? - Robin T.Verified BuyerHeight 5’6 – 5’8”Pant Size 18Pant Size Purchased XXLUsage Light Bladder Leaks16 hours agoHeight 5’6 – 5’8”Pant Size 18Pant Size Purchased XXLUsage Light Bladder LeaksRated 5 out of 5 starsLove my leakproof undies!
My Knix leakproof undies are my go to underwear. They are so comfortable and no worries when I sneeze. 😉
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? - Susan m. w.Verified BuyerPant Size 12Size Purchased LUsage Light Bladder Leaks3 days agoPant Size 12Size Purchased LUsage Light Bladder LeaksRated 5 out of 5 starsSoft
Nice fit. Works well. Good color.
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?
