

Thinx for All Women's Comfort Brief Leakproof Period Underwear, S-XL, Black
Key item features
- Superior Absorbency: Absorbs up to 12 regular tampons' worth of flow, featuring an absorbent core layer for reliable protection.
- Extended Leakproof: Provides all-day leakproof protection for up to 12 hours, thanks to its LeakSafe barrier.
- Fresh Comfort: Designed to control odor and wick moisture, helping you stay dry and fresh throughout the day.
- Flexible Design: Brief style made with comfortable, flexible fabric that resembles regular underwear, offering built-in leak protection.
- Reusable Solution: Can fully replace disposable period products or serve as a backup to tampons or menstrual cups.
- Certified Safe: Not made or treated with PFAS and certified according to OEKO-TEX STANDARD 100.
- Easy Care: Washable and reusable; machine wash cold and line dry, with a recommended replacement after 30 washes.
Specs
- AbsorbencySuper
- Fabric contentCotton
- Underpant/swim bottom stylePeriod
- Waist size35 in
Reviews summary
- : Accommodates different body types.
- : Made of soft, stretchy material.
- : Absorbs well even on heavy days.
- : Maintains shape and quality after washing.
- : Provides reliable protection against leaks and stains.
- : Absorbs liquids without leakage.
Free 90-day returns
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About this item
Product details
- 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 absorbency period underwear has an absorbent core layer that absorbs up to 3 regular pads', or 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])
Specifications
Absorbency
Fabric content
Underpant/swim bottom style
Waist size
Indications
Health Concern
Skin Care Concern
Directions
Instructions
Fabric Care Instructions
Warranty
Warranty information
Ingredients
Inactive Ingredients
Main Body: 95% Cotton 5% Elastane; Gusset Fabric: Top layer: 100% Polyester; Second layer: 100% Polyester; Third layer: 100% Polyester with Thermoplastic Polyurethane coating. Gusset colorant(s) and treatment(s) may include 1% or less of: Mekricon Red SPW BS, Goldenlon Black PHT, Mekicron SF-R bs, Mekicron Black WT bs, Mekicron Yellow 6GSL bs, Terasil Black W-PES, Terasil Red W-4BS-01 150%, Terasil Yellow W-6GS, Disperse Black ECO, Goldenlon Navy Blue K-XNF, Goldenlon Red 2G-FL, Lava XL-N (Alumina, Silica, water, CI 77947), Suntex TN-5000 (Polyethylene Glycol Copolymer, Isotrideceth-9, Polyethylene Oxide).
Ingredients
Body: 95% cotton, 5% elastane Gusset: 100% polyester
Warnings
State Chemical Disclosure
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Customer ratings & reviews
Reviews summary
- : Accommodates different body types.
- : Made of soft, stretchy material.
- : Absorbs well even on heavy days.
- : Maintains shape and quality after washing.
- : Provides reliable protection against leaks and stains.
- : Absorbs liquids without leakage.
Customer images






+33 images
Showing 1-3 of 337 reviews
Verified Purchase
These are a life saver!!! so worth $15
I used period underwear before, they were thongs from amazon. (love thongs bc I normally get sensory issues with more coverage) I always had a light period previously which the thongs were perfect for. Since getting a copper IUD, I have been bleeding through a regular tampon in less than an hour. I filled an ultra up within 5 hours. It says they soak up 12 regular tampons but I think they could soak up more tbh. These period panties are so comfy and they don't feel like I'm wearing a diaper, you can't see them through plants at all! I got a Medium which is my normal size in undies. For reference I'm 5'5 128-135 ibs, I wear size 2-4 pants, and small-medium shirts. They fit just how I wanted them to, they fit snug but not too tight, well the seams were a little tight so I ripped them a little by stretching them out with my hands. If you're like me and hate tampons and also worry about TSS absolutely buy these! I checked the Thinx website and the cheapest ones they had were $19, so these are definitely worth it. Comparing these to my old period panties they are amazing, no wet feeling when you out them back on, no stentch either!!! If you're on the verge of buying these just do it! life changing! I ordered 6 more right away lol.
Verified Purchase
Grandma's helper - Amen
I have sudden urges and will “dribble” small amounts en route to commode. This underwear garment provides the absorption, protection, and privacy I want. They look like regular panties. I wear the same pair sunrise till bedtime. I previously used a pantyliner, which doesn't absorb, maybe changing once a day, I didn't like the dampness against my skin. I never experience any feel of moisture using these briefs, there's no bulky feeling, no odor. I have washed at least 15 times, air drying, and they look, feel, and perform like they're new just out of the box. Fit is perfect and don't lose their shape. Still do my Kegels, combined with wearing this garment, and I'm happy.
Verified Purchase
Approved by this grandma
Very discreet, looks and acts like every day undergarment. For light urge/dribble/leak. No pads needed. Washable, not bulky, undetectable under clothing. These provided the protection I needed and gave me the confidence to go about my normal daily activities. Highly recommended
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