Review posted
Reviewed by Judith
5 Stars
My daughter likes how they fit and are not bulky.
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Light Leakproof No-Show Underwear Bikini
These period undies protect teens against leaks, sweat, and discharge. A classic silhouette made from soft, stretchy, quick-drying fabric with a thin liner that absorbs the same as about 1 regular tampon. Wear them as everyday underwear, as full protection on light days, or backup on heavy days.
Key Features:
- Quick-Drying
- Moisture and Sweat Wicking
- Absorbs the same as about 1 regular pantyliner/tampon
- Super soft & stretchy
- Invisible under leggings or shorts (aka no visible seam lines)
- Patented leakproof technology
like your comfiest underwear, but with the power of 3 tampons.
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Each pair holds the same as about 1 regular tampons worth of blood, sweat or discharge.
Rapidly absorbs moisture to keep you fresh and dry all day.
Thin, subtle, and designed to feel just like regular underwear.
Simply care with mild detergent and machine wash on cold.
These period undies protect teens against leaks, sweat, and discharge. A classic silhouette made from soft, stretchy, quick-drying fabric with a thin liner that absorbs the same as about 1 regular tampon. Wear them as everyday underwear, as full protection on light days, or backup on heavy days.
Key Features:
- Quick-Drying
- Moisture and Sweat Wicking
- Absorbs the same as about 1 regular pantyliner/tampon
- Super soft & stretchy
- Invisible under leggings or shorts (aka no visible seam lines)
- Patented leakproof technology
Body: 77% Nylon, 23% LYCRA®
Gusset Liner: 86% Cotton, 10% Spandex, 4% Carbon
Gusset: Leakproof Technology
Machine wash cold with mild detergent, do not bleach, lay flat to dry.
Because they’re, well, underwear, we can’t accept exchanges or returns on used items. BUT you can try your first pair on your first order risk-free for 30 days! Learn more about our First Pair Risk-Free Policy.
We offer free standard shipping on all orders over $70. We ship our items via DHL or Canada Post depending on your location. Please allow 1-2 business days for your items to be processed and shipped. During high volume periods, your order may take up to 7 business days to dispatch from our warehouse location.
US Orders: Please allow 3–10 business days for orders to arrive.
International Orders: Please allow 10–25 business days for orders to arrive.
NOTE: Orders placed on Friday after 1 PM will not be processed until the following Monday.
CANADIAN CUSTOMERS: Shop www.knixteen.ca to order in Canadian currency.
nothing is tmi here—we promise.
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Heavy Absorbency
Absorbs about the same as 3 super tampons. Perfect for overnight protection or your teens heaviest days when changing into a fresh pair might not be convenient.
Moderate Absorbency
Absorbs about 2.5 super tampons' worth of blood. Ideal for medium period days, discharge and sweat.
Light Absorbency
Absorbs about the same as about 1 regular tampon worth of blood, sweat or discharge. Ideal for lightest period days, spotting, sweat and discharge.
Each pair has a built-in liner that absorbs period blood. Kt Period Underwear is categorized by light, moderate and heavy flows so you can find the right pair for your teen’s needs.
All of our period underwear, swimwear, reusable pads, and activewear have our patented leakproof technology built right in. Liner’s are discreet and comfortable, and fit for your teen’s unique flow.
That’s up to your teen or tween! Every flow and comfort level is different.
Depending on the absorbency level of the period underwear and the heaviness of your teen’s flow, they can wear our period undies on their own or as a backup to tampons or menstrual cups.
We always recommend they choose an option that makes them feel most confident!
Step 1: Give your teens underwear a quick rinse under cold water.
Step 2: Throw it in the washing machine with your regular clothes. Wash on cold with mild detergent (no softener or bleach).
Step 3: There are two ways to dry them depending on the undies you have: lay flat to dry for medium absorbency products, or tumble dry on low for high to super absorbency products.
Step 4: That’s it! No ironing needed.
Check out our size chart here. If you want some help, we have virtual fitters ready on deck to help your teen find their perfect fit. Book a video call with them today.
Because they’re, well, underwear, we can’t accept exchanges or returns on used items. BUT your teen can try their first pair on your first order risk-free for 30 days!
If you ordered the wrong size of period underwear, we’ll send you a different pair at no cost or offer you a standard refund within 30 days of delivery (excluding original shipping fees).
If your order included multiple period underwear, open, wash, and wear one pair only. That way if you don’t love them, any unopened packages from the same purchase will be eligible for an exchange or standard refund (excluding original shipping fees).
All unopened packages will be donated to local organizations to support people in need.
Reviews
Based on 384 reviews
89%
of reviewers would recommend this product to a friend
| Quality |
Rated 4 out of 5
|
| Comfort |
Rated 4 out of 5
|
| Sizing |
Rated 0 on a scale of minus 2 to 2, where minus 2 is Fits Small, 0 is True to Size and 2 is Fits Large
|
| Effectiveness |
Rated 4 out of 5
|
| Fit |
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
|
Review posted
Reviewed by Erika D.
Verified Buyer
Pant Size
Teen 18-20
Size Purchased
S
Usage
- Primary Protection
- Period
Comfort and Cute All in One
100% does its job and looks good while doing it. No bulk and comfortable to wear.
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I recommend this product
| Quality |
Rated 5 out of 5
|
|---|---|
| Comfort |
Rated 5 out of 5
|
| Sizing |
Rated 0 on a scale of minus 2 to 2, where minus 2 is Fits Small, 0 is True to Size and 2 is Fits Large
|
| Effectiveness |
Rated 5 out of 5
|
| Fit |
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
|
Was this helpful?
Review posted
Reviewed by Joanne G.
Verified Buyer
Reviewing
Light Leakproof No-Show Underwear Bikini
I'm a...
Adult
I purchased for...
Myself
Pant Size
Teen 18-20
Size Purchased
M
Usage
- Back-up Protection
- Period
Such a vibrant colour! Same time quality undies you can rely on!
These undies are such a relief! Never having to worry about a leak is a breath of fresh air!!
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I recommend this product
| Quality |
Rated 5 out of 5
|
|---|---|
| Comfort |
Rated 5 out of 5
|
| Sizing |
Rated 0 on a scale of minus 2 to 2, where minus 2 is Fits Small, 0 is True to Size and 2 is Fits Large
|
| Effectiveness |
Rated 5 out of 5
|
Was this helpful?
Review posted
Reviewed by Rebecca R.
Verified Buyer
Pant Size
Kids 12-14
Size Purchased
XS
Usage
- Back-up Protection
- Period
- Sweat
The besttt
Soooo comfy and perfect for light days, tampon backup, or even just for sweat!
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I recommend this product
| Quality |
Rated 5 out of 5
|
|---|---|
| Comfort |
Rated 5 out of 5
|
| Sizing |
Rated 0 on a scale of minus 2 to 2, where minus 2 is Fits Small, 0 is True to Size and 2 is Fits Large
|
| Effectiveness |
Rated 4 out of 5
|
| Fit |
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
|
Was this helpful?
Review posted
Reviewed by Jennifer P.
Verified Buyer
Pant Size
Teen 4-10
Size Purchased
M
Usage
- Back-up Protection
Teen loves it
I wasn't sure if my 17 year old was going to like them or not, she LOVES them- especially in the summer months. They make her feel less worried about having a leak in her cute summer rompers.
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I recommend this product
| Quality |
Rated 5 out of 5
|
|---|---|
| Comfort |
Rated 5 out of 5
|
| Sizing |
Rated 0 on a scale of minus 2 to 2, where minus 2 is Fits Small, 0 is True to Size and 2 is Fits Large
|
| Effectiveness |
Rated 5 out of 5
|
| Fit |
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
|
Was this helpful?