Astrology Collection Leakproof UltraThin Bikini
42% off
Astrology Collection Leakproof UltraThin Bikini
42% off
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.
The very latest in leakproof innovation – get more absorbency without any extra bulk! Features an ultra-thin liner that absorbs the same as about 2.5 super tampons, and 360LeakSeal™ technology that locks in leaks at every edge. You get the protection you want from periods and light bladder leaks, so you can feel super comfy and worry-free every single day of the month.
Plus, we've added our logo to the liner, so you can tell the difference between these pairs and our lighter leakproof underwear.
🇨🇦 Free standard shipping over $100.
Free expedited shipping over $150.
(after discounts, before shipping + taxes) All items ship from within Canada.
For items with a less than 15% discount (before discount codes), you may exchange for another item or return for store credit. No refunds can be accommodated. Items with a greater than 15% discount (before discount codes), are final sale, meaning no returns, exchanges or refunds can be accommodated. No exceptions.
- MizzyVerified Buyer1 month agoRated 5 out of 5 starsCute and handy
These were part of my first ever purchase from Knix. 1 of 5 styles I got. They are really cute. Cover my whole butt. Were comfortable under skinny jeans running errands on a light-med day. Since the bikini is a smaller style these will be perfect for having I'm my bag for emergencies. To wash I rinsed in the shower, tossed in the gentle cycle, and tumbled dry on low. Afterward the cute design was still intact. Overall I am really happy with them.
Was this helpful? - Shirley L.Verified Buyer2 months agoRated 5 out of 5 starsSuper cute print
It’s such a cute print - it’s nice to have something fun while on my period instead of black.
Was this helpful? - Mary L.Verified Buyer2 months agoRated 5 out of 5 starsLove them
I ordered a few at first found that I love them! I ordered some more!
Was this helpful?
How to wash
Machine Washable: Wash with like colors, cold setting with mild detergent, do not bleach, iron, or dry clean.
Always refer to our Fabric & Care section for best drying practices.
Your leakproof questions, answered.
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.
Coverage at Knix comes in all shapes and sizes. If we’re talking about silhouettes,, we go all the way from thongs to boxers.
We also offer high rise styles, like the Leakproof UltraThin No-Show High Rise, that sits just above the natural waist and gives full coverage through the stomach, hip & bum.
For extra liner coverage, look for undies that have an “extra-long liner” (usually 10”-14”), like in our Dream Short. And our Ultra Zones+ also have full bum coverage, too.
Have a suggested style or coverage? Just let us know. We love the feedback!
