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🩲 Stay leakproof, stay unstoppable — period protection that fits your lifestyle!
Demifill Teen Girls Period Underwear combines 95% cotton softness with a full leakproof lining to provide discreet, breathable protection for teens. Available in sizes XS to XXL, these briefs are designed to prevent leaks during light flow phases when used alongside sanitary products. Their thin, stretch fabric ensures comfort and confidence throughout the day, while easy machine wash care keeps them fresh and durable. Perfect for active teens seeking reliable, stylish period protection without bulk.


















| ASIN | B08DFL16JX |
| Additional Features | Leakproof |
| Age Range Description | Adult |
| Apparel Fabric Stretch | High Stretch |
| Best Sellers Rank | #15,335 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #82 in Women's Briefs |
| Bottom Style | Briefs |
| Brand Name | Demifill |
| Care instructions | Machine Wash, Hand Wash Only |
| Color | Black&peacock Blue&grey |
| Customer Reviews | 4.4 out of 5 stars 4,892 Reviews |
| Fabric Type | 95% Cotton, 5% Spandex |
| Fabric type | 95% Cotton, 5% Spandex |
| Import Designation | Imported |
| Material Type | Cotton, Spandex |
| Origin | Imported |
| Pattern | Solid |
| Product Care Instructions | Hand Wash Only, Machine Wash |
| Rise Style | Mid |
| Size | X-Small |
| Style Name | Modern |
| Style Number | Debao-blackblue-EXS |
| Subject Character | Girls |
| Unit Count | 4 Count |
M**Y
Great Period Underwear. Better Than Thinx
My preteen's favorite period underwear. The protective barrier stretches from the front waist band all the way to the back, which is the best for exercise and lying down. It is thin, not bulky, it does not make rustling sounds when walking. It looks like regular underwear with added protection for leaks. Of course you still have to use feminine hygiene products. These do not have the absorbency for free flowing, unless with really light flow at beginning of end of cycle. I'm comparing these to the expensive Thinx underwear which we bought before these. They were bulky, the barrier did not go from waist band to waist band, and they looked so old after a few washes. But the main issue with those was the bulk was noticeable through her jeans, and she experienced leaks in bed while sleeping and even leaks in public. These underwears don't have any of those problems and price is great. Also they're FSA eligible! For size reference 5'1", 115 to 120 lbs. Wears Medium in these.
A**R
fits to size
These are nice and do what they need to do. I disagree with those who say they run small and are hard to pull on. My daughter wears S and XS in women's size. She's slender and 5 ft 3'. I first got her a Medium, but they were too big on her (loose in the butt), and I had to exchange for XS which fit her just fine. Bonus points: this brand comes in many colors which she loved.
B**A
No leaks
If you have a heavier period these would maybe not work for you, but they have been so helpful for me personally! I haven’t had to worry or stress about leaks or stains since buying these. They’re very comfortable, though just SLIGHTLY on the smaller side. Just barely off in sizing, but it’s enough to be noticeable when you first put them on. Still highly recommend if you have a lighter flow or just want something for your lighter days
A**.
Uncomfortable but they work
Work well paired with my reusable pads (I have very heavy periods). The only downside is they're too tight in the thighs, and I'm quite skinny. If I find them uncomfortable, I'm sure others do as well. I actually tug on the holes for the legs a bit every time I use them, until they're a bit more broken in (or at least I'm hoping that eventually works). Not too noisy or anything
K**E
good
good leak proof comfortable
L**Y
I use for sweat not periods
I use these for work, I get hot and sweaty and these help “cover” my sweat.
F**Y
Sizing inaccurate, material rough feeling
These were not what I expected and I should have read the description better. That being said, I would have still been disappointed with them. The sizing chart was way off and I ordered an extra large for my 14 year old based on weight. It was wildly inaccurate and they were huge. They were a rough feeling material, so I didn't like that either and they had very little stretch, which I think is sort of important for comfortable undies. The last part I'm not grading the product down for, because this was my own fault, but I wanted others to be aware that these are not true "period undies". They are undies that may catch pad or tampon overflow if your primary method of catch fails. When I reread the listing, it does say that in the description but I missed that fact before ordering. I returned these. They were not worth the price to me even if they would have fit.
D**Y
No leak through
My daughter feels more secure when she wears these. No leak through.
A**R
Loved - but why are they “teens”?
These are great. I wanted colours, patterns but all were labelled “teen”. I thought maybe they were sized smaller than usual. I’m 46, a size 6 - they fit the same as any “adult” period undies (these aren’t my first - do size up in all period undies - they are snug on purpose and you will be bloated).
Trustpilot
5 days ago
1 week ago