Period-Proof Activewear

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Leakproof leotards and tights designed to keep you moving (even on your period).

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  • Ballet Pink
  • Black
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Leakproof Tights
Medium Absorbency
$15 USD Buy 3+ Save 20%
  • Black
  • Pink
Leakproof Leotard
Medium Absorbency
$50 USD
nothing is tmi here—we promise.
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Our Period-proof activewear features the same Patented Leakproof Technology as our Leakproof Underwear, which absorbs up to 3 tsp of blood. Plus, each item features moisture-wicking, antimicrobial, odor-crushing technology to tackle any funky smells. All our products are free from PFAS and other chemical treatments.

Each item in our period-proof activewear collection has a super-discreet absorbent pad in the gusset liner that absorbs up to 3 tsp of blood, which equals about 3 tampons.

Every period is different but we recommend wearing your Leakproof Leotard and Leakproof Tights as backup protection with a tampon or menstrual cup during your cycle’s medium to heavy days. Or, wear the leotard and tights alone when you have a light flow.

Quickly rinse the gusset before you throw your tights or leotard in the machine. Wash on cold with mild detergent then lay flat to dry. That's it!

You can find your size here

If you're still not sure which size underwear to get, just book a virtual fitting and someone from the kt team will video chat you to walk you through everything! Book Now

Yes. As long as the sanitary strip and tag are still attached.

*All sale items are final sale.

Absolutely. The Leakproof leotards and tights look and feel just like regular activewear with a barely-there leakproof liner.

The collection is made to fit teen bodies. For period-proof activewear in adult sizing please visit