Period proof teen underwear for every flow.


Feels like regular undies


Really (really) leak proof®


Super absorbent


Fights odors

Teen Everyday Bikini
Holds 1 Light Tampon or Panty Liner

Goodbye pantyliners. Hello everyday protection.

Teen Hipster
Holds up to 5 Regular Tampons or 10 Teaspoons

The ultimate in leak protection

Teen Boyshort
Holds up to 3 Regular Tampons or 6 Teaspoons

For sports, sleep, and regular-to-heavy flow days

Teen Brief
Holds up to 3 Regular Tampons or 6 Teaspoons

For period days that end in ‘y’

Top FAQs

see all FAQS

How does period underwear for teens work?

Proof Teen period underwear look and feel exactly like your comfiest undies, but they have built-in Leak Proof® technology designed to help keep you leak-free and feeling dry while on your period. The quick-dry lining pulls moisture away from the body, and antimicrobial fibers help inhibit the growth of bacteria and fight odor. The underwear’s Leak-Loc™ edges help keep leaks contained. Plus, Proof Teen panties are machine-washable and reusable, which makes them way better for the environment.

Will Proof period undies smell?

Our Leak Proof® underwear were made to keep you feeling confident and odor-free, no matter what time of the month. A moisture-wicking lining and antimicrobial fibers help eliminate bacteria and odor. If you ever feel like your Proof Teen panties need a refresh, add a few drops of vinegar or tea tree oil to your washing machine during the rinse cycle.

Can period underwear replace pads/tampons?

Yes! Proof undies can completely replace pads, pantyliners, tampons, and cups. We offer absorbencies that range from super-light to super-heavy (just like tampons!). Our most absorbent panties hold up to 5 regular tampons or 10 teaspoons of liquid. Fun fact: That’s more than the average woman loses during her entire cycle!

Can I wear these with a tampon or a menstrual cup?

Absolutely! Proof undies can serve as a backup for a tampon or menstrual cup to provide extra protection. The most absorbent pairs can hold up to 5 regular tampons or 10 teaspoons of liquid.

Are Proof leak proof undies reusable?

100%. It’s a huge part of why so many people love them! Proof Teen period underwear are machine washable and reusable—a win for the planet and your wallet, especially compared to expensive single-use period products. Plus, they’ll be ready and waiting in your panty drawer for whenever your period strikes again.

Are Proof teen period undies good to wear when playing sports?

Absolutely! Our Proof Teen line was designed to keep you comfy, dry, and leak-free during all your favorite activities. We recommend throwing an extra pair in your gym bag so you’ll be ready to go whenever it’s game time.

How do I wash them?

You can hand wash in cold water, or just toss them in your washing machine on the gentle cycle with cold water and a mild detergent. Hang them up or lay flat to dry to preserve the leak-protective properties. Check out the care instructions for more detailed info.