Teen Light Leakproof No-Show Bikini 3-Pack
30% off
Teen Light Leakproof No-Show Bikini 3-Pack
30% off
Knix period underwear and pads are now sales tax-free in Canada.* We celebrate improvements to the accessibility and affordability of essential period care products.
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
🇨🇦 Free standard shipping over $100.
Free expedited shipping over $150.
(after discounts, before shipping + taxes) All items ship from within Canada.
For items with a less than 15% discount (before discount codes), you may exchange for another item or return for store credit. No refunds can be accommodated. Items with a greater than 15% discount (before discount codes), are final sale, meaning no returns, exchanges or refunds can be accommodated. No exceptions.
- Nicola B.Verified Buyer11 hours agoRated 5 out of 5 starsGreat product
Very comfortable. Doesn’t ride up. Would love more
ComfortRated 5.0 on a scale of 1 to 5Poor ExcellentFitRated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeEffectivenessRated 4.0 on a scale of 1 to 5Poor ExcellentEase of UseRated 4.0 on a scale of 1 to 5Poor ExcellentWas this helpful? - Joan M.Verified Buyer11 hours agoRated 5 out of 5 starskeeps me safe
My great granddaughter loves the Knix she has, believe me. She is 12 years old, and prefers wearing her leakproof knix bikini underwear during her periods! She has told some of her friends about them, and I (her nana) have told friends of mine as well.
Truly a blessing to young girls!
ComfortRated 5.0 on a scale of 1 to 5Poor ExcellentFitRated 2.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeEffectivenessRated 5.0 on a scale of 1 to 5Poor ExcellentEase of UseRated 5.0 on a scale of 1 to 5Poor ExcellentWas this helpful? - Cheryl W.Verified Buyer19 hours agoRated 5 out of 5 starsFeels like butter
I live my new bikini style KNIX undies. I dropped down a size because they do stretch out quite a bit. The XS fit nicely & I love how they look & feel.
ComfortRated 5.0 on a scale of 1 to 5Poor ExcellentEffectivenessRated 5.0 on a scale of 1 to 5Poor ExcellentFitRated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeEase of UseRated 5.0 on a scale of 1 to 5Poor ExcellentWas this helpful?
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.
