LEAKPROOF GUIDE

North America’s #1 Leakproof Brand

With over 10 years of innovation and 8 million+ pairs sold, Knix has solutions for you, no matter your flow. Try UltraThin, our latest huge leap forward in leakproof technology.

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8+ million Leakproof Underwear sold

Why Choose Knix

Find your absorbency level

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Lightest

Absorbs about the equivalent of 0.5-1 regular tampon.

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Light

Absorbs about the equivalent of 1-3 regular tampons.

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Medium

Absorbs about the equivalent of 2-3 super tampons.

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Heavy

Absorbs about the equivalent of 3-6 super tampons.

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Ultra

Absorbs about the equivalent of 7-9 super tampons.

“Love these! The extra leakproof coverage is perfect for heavy days and nights!”

“Love these! The extra leakproof coverage is perfect for heavy days and nights!”

Eva B.

“As I go through menopause, this underwear served as great protection as I progress through unpredictable cycles.”

“As I go through menopause, this underwear served as great protection as I progress through unpredictable cycles.”

Nicole Mikel B.

“It’s so nice to finally feel comfortable while having your period.”

“It’s so nice to finally feel comfortable while having your period.”

Brittney

Praise in the press