4.1
Rated 4.1 out of 5 stars
667 Reviews
Sales Tax-Free*

Ultra Leakproof Zones+ High Rise

Max absorbency for heavy periods and light bladder leaks. Absorbs about 9 super tampons worth of liquid.
$39.00 CAD

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

Alex has 36.5" hips and wears a Knix size S
Product image
Alex has 36.5" hips and wears a Knix size S
Alex has 36.5" hips and wears a Knix size S
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
Alex has 36.5" hips and wears a Knix size S
4.1
Rated 4.1 out of 5 stars
Based on 667 reviews
78%would recommend these products
667 reviews
  • Toni S.
    Verified Buyer
    4 hours ago
    Rated 5 out of 5 stars
    Very comfortable

    I liked the way they fit and how they didn’t sweat.

  • DIANA l.
    Verified Buyer
    5 hours ago
    Rated 5 out of 5 stars
    Review of my purchase

    Very pleased with knix ultra. Have already encouraged two other people to purchase them.

  • Emilie F.
    Verified Buyer
    4 days ago
    Rated 5 out of 5 stars
    Very Happy

    They fit well and Works perfectly

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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

Learn More

Your leakproof questions, answered.