Period Underwear

Period Underwear changes everything

Get period underwear from the leaders in leakproof.

The best thing to happen to periods ever

Imagine the confidence you’ll feel in underwear that absorbs the same as about 8 regular tampons. And they feel and wash just like regular undies.

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★★★★★

“They fit perfectly AND handle my heavy days beautifully.”
Sonya S

Ways to save

FIND THE BEST PAIR FOR YOU

Covered for everything

✓ For light days or backup protection

✓ Full replacement of disposables on heavy days

✓ Protection day or night

✓ Save 15% on any 3+ pairs or 25% on 6+ pairs

“I bought 11 pairs and I’m never turning back.”

“I bought 11 pairs and I’m never turning back.”

Sandra P.

“I haven’t felt this secure, comfortable and protected ever.”

I haven’t felt this secure, comfortable and protected ever.” 

Sheny T.

“I can’t believe I’ve gone so long without these!”

“I can’t believe I’ve gone so long without these!”

Liz

“I bought 11 pairs and I’m never turning back.”

“I bought 11 pairs and I’m never turning back.”

Sandra P.

“I haven’t felt this secure, comfortable and protected ever.”

I haven’t felt this secure, comfortable and protected ever.” 

Sheny T.

Knix Founder, Joanna Griffiths explains Period Underwear

More ways to feel unapologetically free

More ways to feel unapologetically free

Find an amazing wireless bra to match your Undies. Plus explore our other products, all designed to make you feel so comfortable in your own skin.

Value Prop