










🩸 Leakproof confidence meets sustainable comfort—because you deserve better.
The KNIX Super Leakproof Bikini offers heavy absorbency equivalent to 1.5 regular pads or 3 super tampons, featuring a 9-inch quick-dry gusset that prevents leaks from periods or light bladder issues. Designed with a classic mid-rise fit, these machine washable and reusable period panties combine comfort with sustainability. Lab-tested and trusted by thousands, KNIX transforms period protection into a discreet, reliable, and eco-friendly experience.







| ASIN | B0CKL95X7F |
| Best Sellers Rank | #17,281 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #2 in Women's Period Panties #127 in Incontinence Protective Briefs & Underwear |
| Customer Reviews | 4.2 4.2 out of 5 stars (689) |
| Date First Available | September 14, 2022 |
| Department | womens |
T**S
Buying more
I just came back to buy 2 more! I like that the pad is not bulgy where I feel like I'm wearing a diaper like some other products I've tried. These are comfortable to sleep in and had me covered throughout the night.
S**H
Great product
Can run a bit large. I like them to fit snug.
D**M
Great peace of mind
Wearing overnight as back up protection. Stays in place and does the job. Much better than pads which may bunch and shift. Not sure if I'd wear them all day as they fit tighter/lower on my legs on the front and ride up a bit in the back. But I can sleep comfortably.
A**A
Best period underwear
These are the best period panties I've tried. They are comfortable and not too thick. They absorb well and fit nicely with no VPL. I've not had any leaks with them. Decent price for such a good product.
D**O
Comfortable and Effective
Age and hormones have made these a necessity. They are amazing, and I ordered a few pairs to use daily, but especially when traveling. Highly recommend. Sizing seems a little big to me.
F**.
Not enough coverage
I highly recommend not wearing to bed. Not enough coverage front to back. Even the heavy absorption is not enough for nighttime use. These are NOT leakproof! And if you are a little heavier in the abdomen area, these roll down and are uncomfortable. They’re almost too thin. Too much money for these.
Y**S
Comfortable fit
Comfortable fit and fabric. Great for catching small leaks before making it to the restroom.
M**.
Runs a little small
I haven't used this yet bc it showed up the day after my cycle ended. It feels like comfortable material, though, and the crotch isn't very thick like I had feared (I'm a tampon user). The only complaint right now is I got them for emergency or for overnight & I bought them 2 sz larger than what I usually wear bc of the material. I gambled bc that fabric typically runs "tight" or smaller. I was right. It stretches fine, but the waistband is tighter than I had hoped it would be. There's no tummy control, so to speak... Just muffin top. There may be different styles and I just didn't see it. But I definitely wanted this brand bc the little bit of research I did showed that a lot of panties advertised as period panties were actually just thicker lined in case you leaked through your pad or tampon... This brand was the actual period panties for a super flow. I have a cycle every two weeks, & I'll be using it soon...so if the absorbency is great, I'll come back and increase the stars. I'm not dissatisfied.
S**S
Wish I had these years ago. Awesome product. Comfortable. Great if you work outdoors. Will save me a lot of money and stress in the long run I think.
A**R
Perfect use. Would recommend
A**R
They are full coverage and the pad is thick - they do work well for overnight but are bulky to me for day wear. They wash well. I'd suggest sizing up. Seems are holding up well over time and washing.
E**N
Excellent quality. Love Knox products.
V**S
Happy with underwear. Wear on light days. So comfy i don't even feel like im on my period
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