4.6
Rated 4.6 out of 5 stars
3,318 Reviews
Best Seller

Super Leakproof® No-Show Boyshort

Super leakproof is great for heavy days. Absorbs about 4 super tampons worth of liquid.
$32.00 CAD

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

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4.6
Rated 4.6 out of 5 stars
Based on 3,318 reviews
ComfortRated 4.7 on a scale of 1 to 5
EffectivenessRated 4.6 on a scale of 1 to 5
FitRated -0.1 on a scale of minus 2 to 2
Ease of UseRated 4.6 on a scale of 1 to 5
Ease of Use Rated 4.3 on a scale of 1 to 5
89%would recommend these products
3,318 reviews
  • Samantha
    Verified Reviewer
    18 hours ago
    Rated 5 out of 5 stars
    Leakproof even playing tennis!

    I’m not one to typically leave reviews but, seriously, these are amazing. I had surgery and was unable to use other menstrual products during recovery. I’m a tennis player, and was able to play multiple matches, running and jumping around, without a single drop of a leak. I was so shocked! Sure, I could feel it a little, but didn’t have a bit of irritation.

    I wore an XS and I’m 5’5, 135 with 34” hips. I usually wear a 0-2 in pants. These are quite stretchy (and if you’re wearing them for activities, I think a snug fit is ideal).

    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
  • Kadie D.
    Verified Buyer
    1 week ago
    Rated 5 out of 5 stars
    First period panties

    These were my daughter’s first pair of period panties. We have tried others since and had to return. She only wants Knix! Best fitting and comfiest!

  • Harmony S.
    Verified Buyer
    2 weeks ago
    Rated 5 out of 5 stars
    Extremely comfortable

    These are extremely comfortable and I love that they can go into the dryer. No leaks overnight. Will definitely order more.

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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
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.

Your leakproof questions, answered.