Proof. by Always Women's Briefs, Super Heavy Absorbency Period Underwear - Small - Black
$20.99
SizeS - Sold out
ColorBlack - Sold out
Out of Stock
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Return this item by mail or in store within 90 days for a full refund.
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Fit & style
- UP TO 100% LEAKPROOF: Proof women's reusable period underwear is designed with a built-in super absorbent core to pull fluid away from your body.
- POWERED & TESTED BY ALWAYS®: Proof’s patented Leak-Loc® technology was further developed in partnership with the makers of Always.
- SUPER HEAVY ABSORBENCY: The Super Heavy Brief holds up to 7 regular tampons and is designed to help keep you protected, dry, and confident on your heavy flow period days.
- FITS & LOOKS LIKE EVERYDAY UNDIES: The brief style is an essential for your period days with a classic mid-rise fit and a super-soft, stretchy feel that is invisible under clothing.
- WASHER & DRYER FRIENDLY: After wearing, machine wash cold on delicate cycle. Tumble dry low or hang to dry. Proof undies are made to last and designed for over 3 years of wear!
- FIND YOUR PERFECT PROOF® FIT: Reference the Proof Fit Guide to learn more about sizing, fit, and available styles.
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3.6 out of 5 stars with 26 reviews
absorbency: 3.17 out of 5
comfort: 3.17 out of 5
odor control: 1.83 out of 5
quality: 2.83 out of 5
value: 2.5 out of 5
33% would recommend
6 recommendations
5 out of 5 stars
30 April, 2026Verified purchase
(no review title)
did as advertised
3 out of 5 stars
Thumbs up graphic, would recommend
14 February, 2026Verified purchase
dont love/dont hate 'em!
They work really well, but they’re too expensive to rely on as your main form of flow control. Also, after a long day I don’t love how they feel or smell, so I only use them as a backup—either with a tampon or with another pad layered over it. If you have endo or a very heavy flow, you’ll definitely need a backup.
1 out of 5 stars
Thumbs down graphic, would not recommend
20 November, 2025Verified purchase
Not for sensitive skin
I had high hopes for this product, but it gave me the worst dermatitis I’ve ever experienced and it is hard to get it clean enough or to dry properly.
5 out of 5 stars
Thumbs up graphic, would recommend
26 October, 2025Verified purchase
(no review title)
The best decision I've ever made. I can finally sleep comfortably.
3 out of 5 stars
Thumbs down graphic, would not recommend
4 April, 2025Verified purchase
Not great
I have a bunch of different type of. Underwear from Salt to Thinx and I thought I've tried this brand before and liked it. So I got a pair I slept through the night in them. They don't absorb the way my other ones do. I got out of bed and it just gushed everywhere. Not to mention that I feel like there's not enough on the back side to really be protecting. I'd recommend this if you have super light periods maybe or regular to light. I get. Underwear because mine are usually heavy and this did not pass that test.
1 out of 5 stars
8 October, 2024
Not a fan
These are not absorbent and the material is weirdly uncomfortable. As a heavier girl the material made me sweat. They are huge but the absorbency is terrible thinx is much better brand
4 out of 5 stars
Thumbs down graphic, would not recommend
29 July, 2024
Good
This underwear is good.is absorbed all of it love that!! It’s comfort was good. But it did not control the odor very well… and the quality was not good either. The price was amazing!! But will not recommend.
1 out of 5 stars
Thumbs down graphic, would not recommend
13 May, 2024
Ugh, do not recommend. Saalt brand over this!
I would give zero stars if possible, strange swimsuit material that isn’t comfortable or moisture wicking at all, these leak, they bunch oddly and have too much bulk compared to other period panty brands. Very uncomfortable and not the best for period security even on light flow days.