Thinx for All Period Underwear for Women, Super Absorbency, Black, S-XL
Thinx for All Period Underwear for Women, Super Absorbency, Black, S-XL
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Overall pick

Thinx for All Period Underwear for Women, Super Absorbency, Black, S-XL

1,011 ratings

Key item features

  • Powerful Absorbency: Features a super flow absorbent core layer, capable of absorbing up to 12 regular tampons' worth of flow for all-day protection (*Individual Results May Vary).
  • Reliable Protection: Designed with an advanced LeakSafe™ barrier, ensuring leakproof wear for up to 12 hours, helping prevent accidents throughout the day.
  • Comfortable Wear: Crafted in a brief style from soft, flexible, and breathable cotton fabric, providing the comfortable look and feel of regular underwear.
  • Lasting Freshness: Incorporates moisture-wicking technology to keep you feeling dry, coupled with effective odor control for lasting freshness.
  • Versatile Reusability: Washable and reusable, this period underwear can serve as a total replacement for disposable products or as a dependable backup. Optimal replacement after 30 washes.
  • Assured Safety: Proudly free from PFAS and certified by OEKO-TEX STANDARD 100, ensuring safety and quality materials against your skin.
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Specs

Absorbency, SuperUnderpant/swim bottom style, PeriodSize, XLWaist size, 35 inMaterial, CottonColor, Black

About this item

Product details

It’s time to leakproof your period. Thinx for All period underwear looks and feels like regular underwear, but it’s designed with built-in period protection that’s leakproof all day up to 12 hours. Thinx for All period underwear features an absorbent core layer that absorbs up to 12 regular tampons’ [KM3] worth of flow*, and the moisture-wicking layer helps keep you feeling fresh and dry. Made with breathable cotton, Thinx for All period panties let you go about your day in comfort. From the period experts at Thinx, Thinx For All can be a total replacement for disposable period products, or can be worn as a backup to tampons or menstrual cups. Thinx for All period panties are washable and reusable. Machine wash your Thinx period underwear on cold, line dry, and repeat! Not for use on open cuts, abrasions or incisions. Replace at 30 washes. (*Individual Results May Vary)
  • Thinx for All period underwear, all day absorbency, size extra large, black, 1 count, HSA/FSA-eligible, packaging may vary
  • Absorbs Up to 12 Regular Tampons' Worth of Flow*: Our super flow period underwear has an absorbent core layer that absorbs up to 12 regular tampons' worth of flow (*Individual Results May Vary)
  • All Day Leakproof up to 12 Hours: The LeakSafe™ barrier helps prevent leaks throughout the day
  • Fresh & Dry Feeling: Reusable period underwear controls odor and wicks moisture to help you stay dry
  • Comfy & Flexible: Brief style is made with comfy, flexible fabric that looks and feels like regular underwear, but with built-in leak protection
  • #1 Selling Reusable Period Underwear Brand* (*Source: Nielsen, Total US Retail Stores xAOC 52 Weeks 8/05/23)
  • Can be worn as a total replacement for disposable period products, or can be worn as a backup to tampons or menstrual cups
  • Thinx for All period underwear is not made or treated with PFAS.
  • Our underwear is certified according to OEKO-TEX STANDARD 100** (**registered: [20.HUS.04850 | HOHENSTEIN HTTI])
info:
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Specifications

Absorbency

Super

Underpant/swim bottom style

Period

Size

XL

Waist size

35 in

Indications

Directions

Instructions

Thinx For All Leaks reusable underwear is a sustainable and comfortable alternative to single-use disposables for pregnancy, postpartum and adult incontinence.

Fabric Care Instructions

After use, simply machine wash cold your Thinx period panties, hang dry and repeat!

Ingredients

Warnings

Customer ratings & reviews

4.6 out of 5 stars
stars
1,011 ratings384 reviews
Includes global ratings and reviews
How item rating is calculated

Reviews summary

Pros

  • : Made of breathable materials for a comfortable fit.
  • : Can be washed and dried without issues.
  • : Absorbs well even on heavy days.
  • : Absorbs menstrual flow without leakage.
  • : Fits according to size chart measurements.

Neutral

  • : Product gives durable protection but is costly and sold singly.
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Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
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Showing 1-3 of 384 reviews

Nov 5, 2026
Reviewer name: Eliana
Top Reviewer
Item details
Size: XL
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

So comfortable during heavy days!

Helpful?713OFJ6GGSQV5086852770
Aug 20, 2026
Reviewer name: anonymous
Item details
Size: S
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

These Are Amazing!

I had tried a different, more expensive brand before these and I was not impressed. They didn't fit right and felt too bulky. I thought that's just the way Period Panties were. IT IS NOT. I knew these were different when I took them out of the washer and the crotch was DRY. Straight from the washer. My other ones WERE NOT like that. Everything sat there feeling wet. I just thought that was the way they were. I am thrilled that these work so good, and at almost half the price of the other ones I tried. I just got a second pair. It's so much easier for days when you need SOMETHING but don't have time to think about what size/absorbancy.

Helpful?713OFJ6GGSQV5086852770
May 29, 2026
Reviewer name: Deanna
Item details
Size: L
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

No leakage, feels great, smells strong, need more.

My menstruation recently returned after giving birth in the hospital a couple months ago, therefore my flow is incredibly heavy. After wearing these for 12 hours, there was no blood leakage. I did not feel like I was wearing anything at all, most of those 12 hours. However, the package states that it minimizes smells. I can say firsthand that the smell accumulates quickly, but that could just be my own biology. This is a wonderful product; however, twenty dollars is a significant amount for a singular pair of period underwear. I would be more willing to buy these for $20 with two pairs in the package.

Helpful?713OFJ6GGSQV5086852770
Current price is $18.68
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