Leakproof Boyshort

This comfortable, machine-washable boyshort underwear features patented leakproof technology that absorbs up to 3 tsp of liquid – perfect as backup protection during your cycle’s heavier days, on its own for lighter ones, or for helping you deal with light bladder leaks. Please note: All underwear are final sale

Please note: All underwear are final sale.

Leakproof Essentials

We've harnessed cutting-edge textile technology to give you that extra confidence and comfort you deserve.
Patented Leakproof Tech
Super-absorbent, moisture-wicking, odor-killing, and quick-drying to keep you feeling fresh no matter what.
Conforms to Your Body
Adaptive 4-way stretch material that also relaxes with wash and wear for a perfect fit.
Makes Less Waste
Works great used on its own during light flow days or paired with tampons or menstrual cups during heavier periods.

Knix Leakproof Period Underwear FAQs

Super Leakproof Technology
average rating 4.7 out of 5
Based on 2297 reviews
  • 5 Stars
    1777 Reviews
  • 4 Stars
    380 Reviews
  • 3 Stars
    83 Reviews
  • 2 Stars
    35 Reviews
  • 1 Star
    22 Reviews
95% 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
2297 Reviews
Reviewed by Laurie V.
Verified Buyer
I recommend this product
Pant Size
12
Size Purchased
L
Usage
Period Back-Up
Rated 5 out of 5
Review posted

Leak-proof boy short

Comfortable and leak-proof even during gym workouts.

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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 Michelle S.
Verified Buyer
I recommend this product
Pant Size
8
Size Purchased
M
Usage
Period Back-Up
Rated 5 out of 5
Review posted

Comfortable and secure...

I like the fit, feel and security I feel when wearing Knix 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?
Reviewed by Kasey
Verified Buyer
I recommend this product
Pant Size
10
Size Purchased
L
Usage
Period Back-Up
Rated 5 out of 5
Review posted

100% comfort right away

Loved the fit of these the best. Instant comfort. Going to buy the boy brief in the super!!!

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Comfort
Rated 5 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
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Reviewed by Sarah
Verified Buyer
I recommend this product
Pant Size
8
Size Purchased
M
Usage
Period Back-Up
Rated 5 out of 5
Review posted

Perfect

I love these. I dont need to worry about leaks!

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Comfort
Rated 4 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?