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🩸 Leakproof luxury for your heaviest days—comfort that keeps up with you.
KNIX Women Leakproof Period Underwear Boyshorts deliver heavy flow protection by absorbing up to 7 super tampons worth of liquid. Designed with a full-coverage boyshort cut and advanced leakproof gusset technology, these breathable, flexible, and machine-washable underwear provide reliable, eco-friendly menstrual care with all-day comfort and confidence.













| ASIN | B0BHKWQN59 |
| Additional Features | Leakproof, Lightweight |
| Age Range Description | Adult |
| Apparel Fabric Stretch | Medium Stretch |
| Best Sellers Rank | #54,792 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #17 in Women's Period Panties #249 in Incontinence Protective Briefs & Underwear |
| Bottom Style | Boy Shorts |
| Brand Name | KNIX |
| Care instructions | Machine Wash |
| Color | Black |
| Customer Reviews | 4.2 out of 5 stars 484 Reviews |
| Fabric Type | Main Body: 70% Nylon 30% Spandex |
| Fabric type | Main Body: 70% Nylon 30% Spandex |
| Fit Type | Regular |
| Fit to Size Sentiment | Positive |
| Garment Size Country | United States |
| Import Designation | Imported |
| Manufacturer | Knix |
| Manufacturer Part Number | FK202BL |
| Material Type | Nylon |
| Number of Items | 1 |
| Origin | Imported |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Rise Style | Mid |
| Size | Large |
| Style Name | Classic |
| Style Number | FK202 |
| Subject Character | Sexy |
| Theme | Sports |
| UPC | 628199183672 |
| Unit Count | 1 Count |
R**E
Holds up great, no leaking or smells
These are hands down my favorite underwear. They provide the right amount of coverage for heavier flow days, but are also comfortable enough to wear month round (after kids, sneezing can yield unwanted wetness on occasion - moms, you know what I mean). On lighter flow days, I skip my period cup and just wear these. I've never had any leaking, and wear them weekly. They don't smell, wash easily (I pre-soak and/or hand-wash in the event of blood, but then throw in washer as normal), and although it isn't recommended - I do throw into the dryer (they typically hold up a year or two before I notice any sort of wear, which I'm guessing is attributed to throwing in normal washer and dryer cycles).
C**D
Amazing and comfy!
Amazing period underwear. Holds a lot and is very comfortable to wear all day. Fits true to size.
B**B
Great protection.
These are the best, I really like using these when I have my period.
D**S
Not great for short waisted women, still roll!
I love the concept. I'm short waisted, flat stomach, fuller behind. These underwear roll at the front and they don't hug my lower bottom but instead flair out. Why? I'm discouraged with the new "high waist" season we're in. For those of us who are petite with short torsos, high waist is a nightmare! I'm trying to find underwear that fit and protect. Bigger challenge than I imagined.
N**E
Skeptical at first, but...
I'd heard of period panties before, but I was really skeptical of their performance, and also how they would feel and look on. I was pleasantly surprised with Knix! The boyshort style is so cute on, and the lining isn't diaper thick like I'd assumed. They're also seamless and don't show much under clothing. Knix has other styles, too, like a thong, that'd I'd be willing to try. I like to wear these when I sleep as "backup." They're so comfortable! I'm really grateful to my friend who recommended these. I haven't tried wearing them on their own, yet. To be honest, I am still a little skeptical of their ability to protect from leaks, etc., especially with how heavy my flow can be sometimes. For now, I just really appreciate the quality and comfort, and I feel protected wearing them as backup during the day or at night.
A**R
PLUS SIZE BEWARE
The garment itself fits but IT IS NOT MADE FOR A PLUS SIZE BODY. The part that is supposed to "collect" barely covers one lip!! And it is not positioned right - why is half of my front slit totally open to bleed all over my clothes while half of my butt Crack is covered????? This is not acceptable!!!!!
K**R
GAME CHANGER!
Warning TMI: I have heavy periods to the point I had to wear adult diapers and it was humiliating. I did not have high hopes when I tried the KNIX but they have been a game changer. They look like other panties and my husband couldn’t even tell the difference. They actually work! They are super comfortable. I was worried about the cost and effectiveness but they are totally worth it. Pads and tampons are expensive these days and I can see the long term savings. I can still feel feminine without the uncomfortableness and embarrassment of pad. That makes them worth every penny.
A**A
Leaks are an issue.
I like the feel and look of the material better compared to other brands. However after 10 months of use, I can confirm that I have to change them 3 to 4 times a day and consistently have leaking issues from the overflow/sides. I have two other brands I also use and I do not have this issue with them and those ones are older.
A**R
Comfortable, leak proof , decent price, not bulky
I was super surprised at how comfortable these were. I'm usually a tampon girly so pads are something foreign to me, but I bought these to wear at night for comfort. They did not disappoint. They weren't to bulky and they fit snug but not tight to my body. No leaks at all ( I have medium to light flow) highly recommended you own at least one pair of these. I just bought a second pair. Thanks
M**N
way better than pads
Way more comfortable than I dared to hope for, definitely more comfortable than a super pad. Wore all day into the next morning at max flow and no leaks. Can't speak to the durability yet as I've only had it for the one cycle. Washed real easy and no residue on the other clothes in the wash with it.
K**N
Comfortable, no leaks , works with leggings
10/10 I love these , they are reusable, comfortable, works with leggings without having to see underwear lines , over all very happy with these I own 3 pairs , HIGHLY recommend , way nicer than pads or tampons or any of that jazz
J**E
Size down
These are pretty good. Way more breathable than other brands I've tried and so far have kept me protected from leaks. However, I wish I hadn't sized up after reading other reviews. I'm usually in between small and medium. I went for small, but even that was a bit loose. The fabric is pretty stretchy and gets looser after a few washes. I did get another one in xs and I'm very happy with those
R**E
Ark emballage déjà été ouvert
Déjà je reçois l'item et l'emballage a déjà été ouvert. Je suis désolée mais ce n'est pas hygénique du tout. J'ai demandé un remboursement! Je m'attendais a un produit neuf et scellé! La culotte avait été remis non plié dedans ça paraissait! Bref, j'en profite pour l'essayer, elle taille bien son 3xl mais je suis déçue de la grandeur de la partie absorbante on dirait la longueur d'un minuscule protège dessous. Si vous êtes comme moi grande de fourche et que vous coulez vers le devant ou beaucoup vers l'arrière vous aller détester car assurément on va déborder. Je suis très déçue. C'est la première culotte menstruelle que j'essaie je ne sais pas si elle sont toutes faites comme ça mais c'est décevant. Je cherche un solution lavable durable et fidèle à mes besoins: partie absorbante plus longue au devant et un minimum en arrière et suffisamment absorbante la nuit. Je ne m'aurais pas senti safe du tout la nuit!
Trustpilot
2 weeks ago
1 week ago