4.0
Rated 4.0 out of 5 stars
263 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 CAD

Mix & Match: Buy 4+ Save 15%, 7+ Save 25%

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Made with soft, stretchy fabric that’s quick dry for your comfort
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Washes just like regular underwear
4.0
Rated 4.0 out of 5 stars
Based on 263 reviews
ComfortRated 4.0 on a scale of 1 to 5
EffectivenessRated 4.1 on a scale of 1 to 5
FitRated 0.1 on a scale of minus 2 to 2
Ease of UseRated 3.9 on a scale of 1 to 5
Ease of Use Rated 4.1 on a scale of 1 to 5
76%would recommend these products
263 reviews
  • Jane F.
    Verified Buyer
    21 hours ago
    Rated 5 out of 5 stars
    The best!

    These provide not only comfort but confidence that I’m protected against embarrassing leaks.

    ComfortRated 5.0 on a scale of 1 to 5
    EffectivenessRated 5.0 on a scale of 1 to 5
    FitRated 0.0 on a scale of minus 2 to 2
    Ease of UseRated 5.0 on a scale of 1 to 5
    Ease of Use Rated 5.0 on a scale of 1 to 5
  • Donna C.
    Verified Buyer
    2 days ago
    Rated 5 out of 5 stars
    Absorbability & Lack of Odor

    I was amazed at the absorbability and lack of odor!

    ComfortRated 5.0 on a scale of 1 to 5
    EffectivenessRated 5.0 on a scale of 1 to 5
    SizingRated 1.0 on a scale of minus 2 to 2
  • Melanie G.
    Verified Buyer
    4 days ago
    Rated 5 out of 5 stars
    Never going back to regular pads

    I was getting tired of single use pads and the constant purchasing every month. I have a heavy flow and experimented with reusable pads but I found they shifted too much, making them uncomfortable. I decided to try Knix and was it ever a game changer! Not only could I go all night with just one pair of the ultra on my heaviest day, but I used the heavy underwear during the day and I would normally have gone through 3 size 5 pads in the time I wore it. Definitely worth the investment and I plan to buy more

    ComfortRated 5.0 on a scale of 1 to 5
    EffectivenessRated 5.0 on a scale of 1 to 5
    FitRated 0.0 on a scale of minus 2 to 2
    Ease of UseRated 5.0 on a scale of 1 to 5
    Ease of Use Rated 5.0 on a scale of 1 to 5
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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.

Our Absorbency Guide

Great forExtra-heavy period days, overnight protection, light bladder leaks
Absorbs~3.5-4.5 regular pads; ~7-9 super tampons; ~2-3 menstrual cups
Ultra Leakproof Zones+ Bikini Dark Teal
Ultra - Bikini Black
Ultra - Absorbency Category
Ultra High Rise Dark Teal
Ultra High Rise Rose Water

Your leakproof questions, answered.