Leakproof Boyshort

Stretchy, seamless boyshorts with added coverage, featuring our patented, 3-layer leakproof technology built in.   

First layer: Moisture-wicking, antimicrobial technology wicks away sweat and moisture while neutralizing odors to keep you fresh all day long. 

Second layer: A super thin, highly-absorbent liner that holds the power of 3 tampons.

Third layer: A secure, liquid-resistant outer layer keeps leaks from happening.

made for doing everything or nothing on your period. your pick.
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Holds up to 3 tampons or pads worth of blood.
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Rapidly absorbs moisture to keep you fresh and dry all day.
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Thin, subtle, and designed to feel just like regular underwear.
Antimicrobial layer kills bacteria and neutralizes smells.

Stretchy, seamless boyshorts with added coverage, featuring our patented, 3-layer leakproof technology built in.   

First layer: Moisture-wicking, antimicrobial technology wicks away sweat and moisture while neutralizing odors to keep you fresh all day long. 

Second layer: A super thin, highly-absorbent liner that holds the power of 3 tampons.

Third layer: A secure, liquid-resistant outer layer keeps leaks from happening.

Body: 77% Nylon, 23% LYCRA® 

Gusset Liner: 86% Cotton, 10% Spandex, 4% Carbon 

Gusset: Leakproof Technology   


Free from PFAS and other chemical treatments. 

Machine wash cold with mild detergent, do not bleach, lay flat to dry.

Because they’re, well, underwear—we can’t accept exchanges or returns on used items BUT you can try your first-pair on your first order, risk-free!  

What's First-Pair Risk-Free?  

If your first order includes multiple period underwear: OPEN, WASH & WEAR ONE PAIR ONLY to test them out. That way, in the unlikely event that you don’t love them, any unopened packages from the same purchase can be exchanged or refunded back to you within 30 days of delivery (excluding original shipping fees).  All unopened packages will be donated to local organizations to support people in need.

*All sale items are final sale.

We ship our items via DHL or Canada Post depending on your location. Please allow up to 10 business days for your items to be processed and shipped.

US Orders: Please allow 3–10 business days for orders to arrive.

International Orders: Please allow 10–25 business days for orders to arrive.


NOTE: Orders placed on Friday after 1 PM will not be processed until the following Monday.
CANADIAN CUSTOMERS: Shop www.knixteen.ca to order in Canadian currency.

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