Super Leakproof Underwear

Shop our latest innovation: the most absorbent leakproof period underwear ever. Super comfortable, super machine-washable, and super cute. Stop relying on disposables and enjoy worry-free protection from periods and pee.
New!
Super Leakproof Boyshort
Super Absorbency
$34CAD Buy 3 Save 25%
Rated 4.7 out of 5
427 Reviews
New!
Super Leakproof Bikini
Super Absorbency
$34CAD Buy 3 Save 25%
Rated 4.7 out of 5
297 Reviews
New!
Super Leakproof High Rise
Super Absorbency
$39CAD Buy 3 Save 25%
Rated 4.7 out of 5
385 Reviews
New!
Super Leakproof Cheeky
Super Absorbency
$34CAD Buy 3 Save 25%
Rated 4.3 out of 5
127 Reviews
New!
Super Leakproof Thong
High Absorbency
$34CAD Buy 3 Save 25%
Rated 4.5 out of 5
153 Reviews
New!
Super Leakproof Boyshort
Super Absorbency
$34CAD Buy 3 Save 25%
Rated 4.7 out of 5
427 Reviews
New!
Super Leakproof Bikini
Super Absorbency
$34CAD Buy 3 Save 25%
Rated 4.7 out of 5
297 Reviews
New!
Super Leakproof Thong
High Absorbency
$34CAD Buy 3 Save 25%
Rated 4.5 out of 5
153 Reviews
New!
Super Leakproof Cheeky
Super Absorbency
$34CAD Buy 3 Save 25%
Rated 4.3 out of 5
127 Reviews

Period Underwear - Because We Bleed

Stop relying on disposables and switch to beautiful, reusable, and comfortable period underwear. Whether you have a light flow or a heavy flow, we’ve designed protection that’s there for you throughout your whole cycle.

Incontinence Underwear - Sometimes We Pee A Little

Sneeze, jump, or giggle without a care! Knix leakproof undies were created so you can get back to enjoying life and not worry about light bladder leaks.

It's time to switch to Leakproof Underwear

Knix Leakproof Period Underwear FAQs