Teen Leakproof Cotton Modal Bikini
Mix & Match: Buy 3+ Save 10%, Buy 6+ Save 20%
Teen Leakproof Cotton Modal Bikini
Mix & Match: Buy 3+ Save 10%, Buy 6+ Save 20%
A highly absorbent bikini in super soft cotton modal fabric, with our patented leakproof technology that absorbs the same as about 2 super tampons or 1 regular pad built right in.
🇺🇸 Free standard shipping over $100*.
Free expedited shipping over $150*. Duty-free. (after discounts, before shipping + taxes)
Within 30 days of delivery, you may exchange for another size, style or store credit. We’re unable to provide refunds on underwear.
Kt by Knix for Teens Underwear FAQs
Kt by Knix is designed for smaller and growing bodies to fit teens. Kt Period Underwear are available in teen sizes with smaller leg openings.
Super Absorbency
Absorbs 9–12 tsp (45–60 ml) of blood—that’s about 9–12 regular tampons or pads! Perfect for overnight protection or your teens heaviest days when changing into a fresh pair might not be convenient.
High Absorbency
Absorbs 4–8 tsp (20–40 ml) of blood, or the equivalent of 4–8 tampons or pads. These are perfect for heavy flow days.
Medium Absorbency
Absorbs up to 3 tsp (15 ml), or about 3 tampons or pads worth of blood. Ideal for light to medium flow days or as backup to tampons or period cups.
All of our period underwear, swimwear, reusable pads, and activewear have our patented leakproof technology built right in.
First Layer: Wicks away sweat and moisture while neutralizing odors to keep your teen fresh all day long.
Second Layer: A super thin, highly absorbent liner that holds the power of 3–20 tampons or pads.
Third Layer: A secure, liquid-resistant outer layer keeps leaks from happening.
The short answer: nope! Depending on the absorbency level of the period underwear and the heaviness of your teens flow, your teen can wear our period undies on their own or as a backup to tampons or menstrual cups. They can wear our High and Super absorbency underwear alone and be totally protected, while our Medium absorbency underwear can be worn alone on lighter days or as backup on heavier days.
- ToniVerified Buyer2 weeks agoRated 5 out of 5 starsVery comfortable
I really like the comfort and fit. I don't need high absorbency, but these fit better than some of the others. I really wish I could get them in a beige.
ComfortRated 5.0 on a scale of 1 to 5Poor ExcellentEffectivenessRated 5.0 on a scale of 1 to 5Poor ExcellentSizingRated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeWas this helpful? - Erin H.Verified Buyer1 month agoRated 5 out of 5 starsDidn’t know but I was waiting for cotton
I have had a few pairs of the sleek no line undies but find they don’t reliably stay put, even after measurements and trials at the Knix Store Polo Park. Decided to try the cotton when I got a Knix bathing suit ( ❤️) this summer and I think I’ve found my regular go to! Stays put and comfy.
Was this helpful? - Linda1 month agoRated 5 out of 5 stars5 Stars
Nice product
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