Thinx Teens Cotton Bikini Leakproof Period Underwear, S-XL, Black
Thinx Teens Cotton Bikini Leakproof Period Underwear, S-XL, Black
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Thinx Teens Cotton Bikini Leakproof Period Underwear, S-XL, Black

4.3 stars out of 473 reviews
(4.3)|
473 ratings

Key item features

  • Teenage Fit: Specifically designed for teens, these Thinx Teens period undies come in sizes S-XL, including a medium 9/10, and are HSA/FSA-eligible.
  • Superior Absorbency: Features an absorbent core layer capable of holding up to 12 regular tampons' worth of flow, or 3 regular pads' worth, providing all-day protection.
  • Leakproof Comfort: Equipped with a LeakSafe barrier, these underwear prevent leaks for up to 12 hours, ensuring clothes and sheets stay clean.
  • Fresh Feeling: The moisture-wicking layer helps teens stay dry, while odor control technology maintains a fresh feeling throughout the day.
  • Cotton Bikini: Made from cozy and flexible cotton in a classic bikini style, offering comfort and flexibility for daily wear.
  • Versatile Use: Can be used as a complete replacement for disposable period products or as a reliable backup to tampons or menstrual cups.
  • Safe & Certified: Not made or treated with PFAS and certified according to OEKO-TEX STANDARD 100, ensuring product safety.
  • Reusable Care: Machine-washable and reusable, simply machine wash cold and line dry; replace after 30 washes for continued effectiveness.
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Current price is $16.68
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Customer ratings & reviews

4.3 out of 5 stars
stars473 ratings240 reviews
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Reviews summary

Pros

  • : Made to feel like regular underwear.
  • : Provides additional security against leaks.
  • : Prevents leakage and odor with fabric.
  • : Absorbs liquid effectively without added bulk.
  • : Designed to fit comfortably, not too tight.
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Showing 1-3 of 240 reviews

Jun 23, 2025
Melissa
Top Reviewer
Item details
Size: L
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Leak Free

I bought this for my 11 year old daughter. fit her well. she is 88 lbs 5 ft. She wore it during her last cycle, she was comfortable and there was no issues with leaking. It was easy to rinse out and held its shape and material well.

Helpful?4FQ3YDR0AFU85087822462
Dec 11, 2025
gema
Item details
Size: XL
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

these make my 12 year old feel super confident I don't have to worry throughout the day. she is also extremely picky, so we have no experience with other brands or anyt. hing to compare them to, but these do wh what they say they're going to do. the absorbency is great. We haven't had any issues

Helpful?4FQ3YDR0AFU85087822462
Dec 10, 2025
LYNDA
Item details
Size: L
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

I'm seventy six years old and been looking for a solution to diapers for elderly. It doesn't matter if you're a baby or how old you are. There is a need for some dignity in this area. I bought these several years ago when they were considered very expensive.But I thought it was an investment. Now I have several different brands and kinds for different reasons.But I love them all, and I still use diapers for those occasions when I need them. But I love my social life without diapers now.

Helpful?4FQ3YDR0AFU85087822462