Super Leakproof Boyshort

Introducing the most absorbent period underwear ever - up to 8 tampons worth! Switch from relying on disposable products to wearing incredibly comfortable and machine-washable boyshort underwear that will protect you every day of your cycle!

Please note: All underwear are final sale

Super Leakproof Benefits

Super Protection
Our state-of-the-art fabric can absorb up to 8 tsp of liquid and stop it from leaking through.
Conforms to Your Body
Adaptive 4-way stretch material that also relaxes with wash and wear for a perfect fit.
Makes Less Waste
Total protection on your heaviest days so you don't have to rely on disposables anymore!

Knix Leakproof Period Underwear FAQs

Super Leakproof Technology
average rating 4.9 out of 5
Based on 38 reviews
  • 5 Stars
    35 Reviews
  • 4 Stars
    3 Reviews
  • 3 Stars
    0 Reviews
  • 2 Stars
    0 Reviews
  • 1 Star
    0 Reviews
97% of reviewers would recommend this product to a friend
Comfort
Rated 4 out of 5
Effectiveness
Rated 4 out of 5
Sizing
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
38 Reviews
Reviewed by Sarah D.
I recommend this product
Pant Size
18
Size Purchased
XXL
Usage
Primary Period Protection
Rated 5 out of 5
Review posted

Super Leakproof is No Lie!

When I first looked at the underwear I thought the gusset pad looked a bit thick. Once I wore it, it felt like it wasn’t even there, and the amount of support was perfect. Super leakproof is no lie!

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Comfort
Rated 5 out of 5
Effectiveness
Rated 5 out of 5
Sizing
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
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Reviewed by Amy H.
I recommend this product
Pant Size
8
Size Purchased
M
Usage
Primary Period Protection
Rated 5 out of 5
Review posted

Wow

I love them! I can wear them overnight and for hours during the day, even on my heaviest days, with no other form of protection. They are ridiculously comfortable and only slightly thicker than the regular leakproof underwear.

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Comfort
Rated 5 out of 5
Effectiveness
Rated 5 out of 5
Sizing
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Was this helpful?