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 2259 reviews
  • 5 Stars
    1747 Reviews
  • 4 Stars
    376 Reviews
  • 3 Stars
    82 Reviews
  • 2 Stars
    34 Reviews
  • 1 Star
    20 Reviews
95% of reviewers would recommend this product to a friend
Rated 4 out of 5
Rated 4 out of 5
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
2259 Reviews
Reviewed by Rachel E.
Verified Buyer
Rated 3 out of 5
Review posted

Rachel's review

SO.... since you asked...

I ordered my boy short, bra and thong. I love the boy shorts actually but the bra and thong do not fit well. I actually emailed in regarding the thong as it was the worst fit out of the three items, literally two sizes smaller than the boy shorts. (and I ordered both in a large)

I was told there was NOTHING knix could do about this.

I spent alot of money without the opportunity to try them on they didn't fit. The fact that an online company refused to do anything about it for me has really not sat well. I just can't see myself doing any more business with your company after spending over $100 and only one item fitting properly.

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Reviewed by Momma B.
Rated 3 out of 5
Review posted

Great ... but

Really like the fit and feel of this fabric, very comfortable, leak proof as advertised. I needed an underwear drawer overhaul and bought 10 pairs and have used them daily for 4 months. There are quality concerns though, the seams in the crotch are coming undone in several pairs. Quite frankly I expect better for underwear of this price that have been cared for according to manufacturer instructions. I have underwear that are far outlasting these that cost a fraction of the price.

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