Proof® Period Underwear - Brief (3 Tampons/6 tsps), Sand, XS

SKU# 28844

Proof® Period Underwear - Brief (3 Tampons/6 tsps), Sand, XS

SKU# 28844
5 out of 5 Customer Rating
4.66667 star rating 3 Reviews
Our basic brief has a classic fit with full coverage that flatter all body types. These undies will feel like your favorite pair while drawing moisture away from your body with our multi-layer Leak -Loc™ system...
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Proof® Period Underwear - Brief (3 Tampons/6 tsps), Sand, XS
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This product is HSA eligible


The Brief offers a full-coverage silhouette with buttery soft fabric for a comfortable fit. Our patented Leak-Loc™ technology pulls in liquid and wicks away moisture for all-day dryness. Holds up to 3 regular tampons or 6 tsp of liquid.


Moderate Periods

Light Bladder Leaks

Replace a Pad

Replace / Back Up a Tampon or Cup


Odor Reduction



  • Mid-rise brief with full back coverage
  • Stretch & recovery fabric and flexible leakproof core provide security and comfort
  • Outer: 75% Nylon 25% Spandex, Lining: 100% Polyester, Lining: 69% Cotton 25% Polyester 6% Acrylate. Imported.



The Brief offers a slim, flexible leakproof core along the center of the undie.  Extended coverage comes further up the front and back for enhanced protection.


The materials in Proof have been rigorously tested in an independent laboratory according to STANDARD 100 by OEKO-TEX®, an international association that ensures the highest level of safety.  All Proof undies are free of PFOA/PFOS, lead, phthalates, and other harmful chemicals and are Prop 65 compliant. In a nutshell: we are committed to providing the highest quality care down there.


Proof undies are a sustainable alternative to traditional period and incontinence products. Say goodbye to single-use plastics for your periods and bladder leaks - Proof has you covered.

Just wear, wash, repeat!


Caring for your pair is easy. Machine wash cold with mild detergents on a delicate cycle, then hang or lay flat to dry.





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