Advanced leakproof technology combining ultra-thin comfort with maximum absorbency. Experience worry-free protection during your period with a soft, breathable design that feels like regular underwear while keeping you completely dry and fresh all day long.
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Love your panties or get a full refund. No questions asked.
Feel confident and leak-free all day long.
Experience worry-free protection without bulk.
Stay fresh and comfortable throughout your cycle.
*Based on a consumer perception study with 34 women while using BlackSwan.
Simply wear like regular underwear on light to moderate days, or as backup protection with your usual products.
Advanced leakproof layers absorb up to 12 hours of flow, keeping you dry and secure throughout your day.
Rinse in cold water after use, machine wash with regular laundry (no softener), and hang dry for long-lasting freshness.
See how our reusable period underwear compares to disposable pads and tampons in terms of cost, comfort, and impact on the planet.
Disposable products
Invest once, reuse for years.*
*Estimates vary according to flow and care.
Our period underwear features advanced leakproof technology with multiple protective layers. The ultra-thin absorbent core can hold up to 12 hours of protection (equivalent to 2-3 tampons), while the breathable top layer wicks moisture away to keep you feeling fresh and dry all day long. The invisible design means it feels just like regular underwear—but with full leak protection.
You can wear BlackSwan period underwear alone on light to moderate flow days with complete confidence. For heavy flow days, you can use them as extra protection with tampons or menstrual cups. Many customers find they can rely on them exclusively after trying them the first time!
Simply rinse in cold water after use, then machine wash with your regular laundry (avoid fabric softener). Hang dry for best results. They're designed to last for years with proper care, making them both economical and eco-friendly. No special treatment needed!
No! Our ultra-thin design is specifically engineered to be completely invisible under any outfit—even tight jeans or leggings. Unlike bulky pads, the seamless construction and slim profile ensure no visible lines, so you can wear them confidently with any clothing style.
Yes! By switching to reusable period underwear, you'll eliminate thousands of disposable products over the years. Each pair replaces hundreds of tampons and pads, reducing waste and saving you money. It's better for the planet and your wallet—invest once, use for years.
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