4.0
Rated 4.0 out of 5 stars
239 Reviews
Best Seller

Ultra Leakproof Zones+ Bikini

Max absorbency for heavy periods and light bladder leaks. Absorbs about 9 super tampons worth of liquid.
$36.00 USD

Mix & Match: Buy 3+ Save 10%, Buy 6+ Save 20%

Tjalise has 42" hips and wears a Knix size M
Product image
Tjalise has 42" hips and wears a Knix size M
Tjalise has 42" hips and wears a Knix size M
Made with soft, stretchy fabric that’s quick dry for your comfort
Designed with extra long protective coverage in the front & back
Washes just like regular underwear
Tjalise has 42" hips and wears a Knix size M
4.0
Rated 4.0 out of 5 stars
Based on 239 reviews
76%would recommend these products
239 reviews
  • Laurie K.
    Verified Buyer
    4 minutes ago
    Rated 5 out of 5 stars
    Bikini Leakproofs - so comfy!

    These do their job and are cute & comfy to boot!

  • Angie
    Verified Buyer
    Yesterday
    Rated 5 out of 5 stars
    Lasts 5 Hours

    On my heaviest period days this will last me 5 hours before I need to change.

  • Jules V.
    Verified Reviewer
    1 week ago
    Rated 5 out of 5 stars
    Used postpartum for lochia

    Protected me completely after birth. I was not sure how these would hold up. Many moms got diapers but I did not see a need for that and hypothesized that Knix could get the job done keeping in the bleeding after postpartum. Let me tell you - it did. I told myself if it was not sufficient I would switch to diapers. It was not needed turns out. These ultra zones + get the job done. I also used the super leakproof undies, at times added the clip on pads Knix sells overnight - as the lochia got less intense. All the super leakproof products and dream short are capable of handling your postpartum needs! And theyre much cuter and less chunky than disposable diapers. If you’re a mom to be, stock up on there. I have like 10-16 pairs of the various : ultra zones+, the attachable pads, the super leakproof high waist and super boy shorts, dream shorts.

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How to Wash - Text with Image Section - PDP Template Mobile

How to wash

Machine Washable: Wash with like colors, cold setting with mild detergent, do not bleach, iron, or dry clean.

Always refer to our Fabric & Care section for best drying practices.

Knix Founder, Joanna Griffiths explains Period Underwear

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Your leakproof questions, answered.