period underwear that’s leakproof all day — up to 12 hours!

period underwear that’s leakproof all day — up to 12 hours!

See ya, period stains 👋 Our new leakproof period underwear is changing the game when it comes to period protection. Thanks to our unique LeakSafe™ barrier, it’s leakproof for up to 12 hours of heavy flow (!) while staying comfy and discreet.

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protection, comfort, and convenience — all in one

  • An icon showing the leaksafe barrier meant to illustrate how Thinx for All absorbs moisture.

    LeakSafe™ barrier is leakproof up to 12 hours

  • An icon showing three droplets meant to illustrate how Thinx for All wicks moisture away.

    moisture-wicking fabric helps keep you dry

  • An icon showing many circles inside a larger circle meant to illustrate how Thinx for All controls odors.

    odor control technology helps minimize odors

  • An icon showing a bowl with liquid contained inside meant to illustrate how Thinx for All prevents leaks.

    absorbent layers hold up to 12 regular tampons’ worth

illustration to indicate Thinx can hold up to 12 regular tampons of liquid

absorbs up to 12 regular tampons’ worth of flow

Thinx underwear absorbs your period while staying discreetly thin, so you can just slip ‘em on and go about your day. The moisture-wicking fabric and odor control technology help keep you feeling fresh, dry, and comfortable.

leakproof all day up to 12 hours

Our innovative built-in technology does it all. The 4-layer gusset absorbs your period, while the sewn-in LeakSafe™ barrier helps prevent leaks throughout the day.

see how Thinx stacks up

In a lab test, we used a replica of a real menstruating human to see which period underwear brand could stand up to 12 hours of heavy flow. Check out the results!

5 out 6 droplets

all-day absorbency


up to 12 regular tampons

up to 3 regular pads

up to 3 menstrual cups

all-day protection for every body

How to Wash

easy to use

You can wear Thinx on its own without any additional period products — it’s that absorbent! Or, you can use leakproof period underwear as a backup to tampons or menstrual cups. Thinx offers the look and feel of regular underwear, providing comfort and security throughout your day. Plus, they are machine washable, simply throw them in with the rest of your clothes and line dry. Easy peasy.

learn more
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