

Proof Women's Super Heavy Absorbency, Brief Period Underwear, Black, Choose Your Size
Key item features
- 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.
Specs
- AbsorbencyExtra Heavy
- Underpant/swim bottom styleBriefs
- Waist size29.75 in
- MaterialCotton
- ColorBlack
- PatternSolid Print
Reviews summary
- : Provides a comfortable, smooth silhouette.
- : Provides protection on heavy days.
- : Made of a smooth, flexible fabric.
- : Features absorbent materials and secure fit for protection.
- : Made with breathable materials.
- : Provides both adequate support and occasional stiffness.
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| Product | Viewing this itemProof Women's Super Heavy Absorbency, Brief Period Underwear, Black, Choose Your Size ![]() $19.97 current price $19.972744.4 out of 5 Stars. 274 reviews | Saalt Leakproof Teen Period Brief - Period Underwear - Heavy Absorbency ![]() $19.98 current price $19.9854.6 out of 5 Stars. 5 reviews | (2 pack) Proof Women's Super Heavy Absorbency, Brief Period Underwear, Black, Choose Your Size ![]() $39.94 current price $39.94 | (2 pack) Proof Women's Super Heavy Absorbency, Brief Period Underwear, Black, Choose Your Size ![]() $41.98 current price $41.98 | (2 pack) Proof Women's Super Heavy Absorbency, Brief Period Underwear, Black, Choose Your Size ![]() $41.98 current price $41.98 | The Period Company. Sporty Stretch Bikini, Period Underwear for Heavy Flows, Black, L ![]() $9.98 current price $9.984294.4 out of 5 Stars. 429 reviews |
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| Absorbency | Extra HeavyProof Women's Super Heavy Absorbency, Brief Period Underwear, Black, Choose Your Size | HeavySaalt Leakproof Teen Period Brief - Period Underwear - Heavy Absorbency | Super Heavy(2 pack) Proof Women's Super Heavy Absorbency, Brief Period Underwear, Black, Choose Your Size | Super Heavy(2 pack) Proof Women's Super Heavy Absorbency, Brief Period Underwear, Black, Choose Your Size | Super Heavy(2 pack) Proof Women's Super Heavy Absorbency, Brief Period Underwear, Black, Choose Your Size | HeavyThe Period Company. Sporty Stretch Bikini, Period Underwear for Heavy Flows, Black, L |
|---|---|---|---|---|---|---|
| Underpant/swim bottom style | BriefsProof Women's Super Heavy Absorbency, Brief Period Underwear, Black, Choose Your Size | BriefsSaalt Leakproof Teen Period Brief - Period Underwear - Heavy Absorbency | Briefs(2 pack) Proof Women's Super Heavy Absorbency, Brief Period Underwear, Black, Choose Your Size | Briefs(2 pack) Proof Women's Super Heavy Absorbency, Brief Period Underwear, Black, Choose Your Size | Briefs(2 pack) Proof Women's Super Heavy Absorbency, Brief Period Underwear, Black, Choose Your Size | PeriodThe Period Company. Sporty Stretch Bikini, Period Underwear for Heavy Flows, Black, L |
| Waist size | 29.75 inProof Women's Super Heavy Absorbency, Brief Period Underwear, Black, Choose Your Size | 24 inSaalt Leakproof Teen Period Brief - Period Underwear - Heavy Absorbency | 29.75 in(2 pack) Proof Women's Super Heavy Absorbency, Brief Period Underwear, Black, Choose Your Size | 32.75 in(2 pack) Proof Women's Super Heavy Absorbency, Brief Period Underwear, Black, Choose Your Size | 37 in(2 pack) Proof Women's Super Heavy Absorbency, Brief Period Underwear, Black, Choose Your Size | 33 inThe Period Company. Sporty Stretch Bikini, Period Underwear for Heavy Flows, Black, L |
| Material | CottonProof Women's Super Heavy Absorbency, Brief Period Underwear, Black, Choose Your Size | NylonSaalt Leakproof Teen Period Brief - Period Underwear - Heavy Absorbency | Cotton(2 pack) Proof Women's Super Heavy Absorbency, Brief Period Underwear, Black, Choose Your Size | Polyester,Spandex(2 pack) Proof Women's Super Heavy Absorbency, Brief Period Underwear, Black, Choose Your Size | Polyester,Spandex(2 pack) Proof Women's Super Heavy Absorbency, Brief Period Underwear, Black, Choose Your Size | FabricThe Period Company. Sporty Stretch Bikini, Period Underwear for Heavy Flows, Black, L |
About this item
Product details
- 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.
Specifications
Absorbency
Underpant/swim bottom style
Waist size
Material
Indications
Health Concern
Directions
Instructions
Fabric Care Instructions
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Ingredients
Ingredients
Outer: 88% nylon 12% spandexTop Lining: 100% polyInterlining: 100% polyBottom Lining: 100% poly
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Customer ratings & reviews
Reviews summary
- : Provides a comfortable, smooth silhouette.
- : Provides protection on heavy days.
- : Made of a smooth, flexible fabric.
- : Features absorbent materials and secure fit for protection.
- : Made with breathable materials.
- : Provides both adequate support and occasional stiffness.
Customer images






+99 images
Showing 1-3 of 242 reviews
Verified Purchase
Discrete.
I really hated the fact I needed a diaper and tried different brands. I am proud to say that these are discrete and comfortable.
Verified Purchase
Fits and feels like normal underwear!
Thus has been the only brand that doesn't feel like I'm wearing a diaper.
Verified Purchase
Great Quality! Cringe Price :(
Long story short - 5 Star for quality, comfort/ fit, and absorbency. 1 Star for overall Price, especially if you buy multiple. Long Story.... I'm actually very impressed with how well these worked. I've tried other big brands or washable pads, but satisfaction is always hit and miss. I bought 2 pair, 1 is the regular and the other overnight. The key difference is that the padded material in the overnight covers more of the bum. This padded material may also be slightly thicker on the overnight one, but I can't say for certain. Both seemed plenty sufficient for all day or all night use. If you're unsure if your flow and night movement warrants the $5 extra for the night pair, you could probably get away with the regular pair. The padded material is Not the entire panty, only where it's supposed to catch your flow. The rest of the panty is lightweight satiny material. There's pilling residue right out of the box, presumably from manufacturing process. It disappears after washing and no evidence of pilling on the panties themselves. Fit is true to size based on chart provided by manufacturer. Both panty types provided good fabric coverage. Absorbency is fantastic! and could last all day if necessary. Just keep in mind that you would use these and change these with the Same frequency As pads for the sake of hygiene. Comfort is great! The padded portion feels bulky at first (so not a great idea in tight clothes). But the material is comfortable enough that you very quickly and easily adapt. Biggest Con is the Price :( It's tolerable for 1 or 2 pair that you alternate with other products (there's some good affordable options for washable pads on Amazon if you want more reusable products). But not a sustainable expense if you wanted enough pairs to maintain good hygiene through your entire menstruation - and then have to replace them periodically like other undergarments.
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