Regular price $54 USD Sale price $42 USD
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Regular price $54 USD Sale price $42 USD

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Unseen but powerful, our Essential Leak-Resistant Period Thong works wonders for your period, leaks, or simply as an everyday go-to pair. Cut from breathable and soft fabric in a mid-rise silhouette, it smooths the look of panty lines while providing leak-resistant protection. Add this thong to your period regimen as an alternative to a panty liner, or simply wear whenever you like! It's simple—make the switch.


Essential Thong Super Light 3-Pack 
Absorbs light spotting, sweat, and discharge 

Can be used as a panty liner alternative or to back up a tampon or cup 

Washer friendly, hang to dry 

Fits and looks like everyday underwear with soft and silky fabric


Leak-Resistant Essential Thong - Super Light 
Outer: 75% Nylon, 25% Spandex 
Top Lining: 100% Polyester 
Interlining: 70% Polyester, 30% Cotton 
Bottom lining: 100% Polyester 

Care Instructions: 
Reusable & machine washable: When you're done wearing, simply wash with cold water and gentle detergent, then hang or lay flat to dry"


Absorbent Zone; Regular 
Center lining protection with absorbent multi-layer core 

  • moisture-wicking top layer
  • absorbent core
  • waterproof liner
  • 4-way stretch outer fabric
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Is the Proof Essential Thong good for everyday wear?

Yes! This 3-pack of the Proof Essential Thong feels just like your favorite underwear, only with leak-resistant protection. It’s the perfect option to wear everyday, thanks to the super slim leak-resistant lining and no show panty lines. It can help protect against light spotting, discharge or sweat, providing you with the everyday comfort and confidence you deserve!

Is Proof Essentials period underwear machine washable?

Yes! All Proof Essentials undies are reusable underwear and offer built-in protection, but should be washed gently. Machine wash on gentle using cold water and gentle detergent, hang or lay flat to dry.

How should a thong fit and what size should I buy?

Our Proof Essentials collection is made with stretchy fabric giving you the flexibility and confidence you need for THAT time of the month - hello comfort! Generally we advise buying to your normal underwear size, and the Proof Essentials line has you covered with XS/SM, M/L and XL sizing. For more guidance, check out our size guide.