Super Leakproof™ No-Show Underwear Boyshort

With the ability to hold about 3 super tampons’ or 1.5 regular pads' worth of blood, this super-absorbent boyshort underwear works just as hard as you do—no backup needed. With our patented leakproof technology and quick-drying fabric, they’re a game-changer for training and recharging with protection against sweat, discharge, and blood, on heavy days or nights.

Key Features:

- Quick-Drying

- Moisture and Sweat Wicking

- Absorbs the same as about 3 super tampons or 1.5 regular pads

- Super soft & stretchy

- Invisible under leggings or shorts (aka no visible seam lines)

- Patented leakproof technology

school. sofa. sleep. you’ll wear these period undies everywhere.
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Holds the same as about 3 super tampons
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Rapidly absorbs moisture to keep you fresh and dry all day.
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Allows air to circulate to keep you cool and dry.

With the ability to hold about 3 super tampons’ or 1.5 regular pads' worth of blood, this super-absorbent boyshort underwear works just as hard as you do—no backup needed. With our patented leakproof technology and quick-drying fabric, they’re a game-changer for training and recharging with protection against sweat, discharge, and blood, on heavy days or nights.

Key Features:

- Quick-Drying

- Moisture and Sweat Wicking

- Absorbs the same as about 3 super tampons or 1.5 regular pads

- Super soft & stretchy

- Invisible under leggings or shorts (aka no visible seam lines)

- Patented leakproof technology

Body: 70% Nylon, 30% Spandex 

Lining: 84% Modal, 8% Seaweed, 8% Spandex 

Gusset: Fresh Fix Technology®, 100% Polyester, PU Film

 

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 for 30 days! Learn more about our First Pair Risk-Free Policy.

We offer free standard shipping on all orders over $80.

We ship our items via DHL or Canada Post depending on your location. Please allow 1-2 business days for your items to be processed and shipped. During high volume periods, your order may take up to 7 business days to dispatch from our warehouse location. 


Canadian Orders: Please allow 2–4 business days for shipping to the GTA, 3–10 business days for urban areas, and 6–15 business days for remote locations.


NOTE: Orders placed on Friday after 1 PM will not be processed until the following Monday.

 FOR THE PLANET
FOR REAL LIFE
FOR THIS GENERATION
FOR THE PLANET
FOR REAL LIFE
FOR THIS GENERATION
FOR THE PLANET
FOR REAL LIFE
FOR THIS GENERATION
FOR THE PLANET
FOR REAL LIFE
FOR THIS GENERATION
FOR THE PLANET
FOR REAL LIFE
FOR THIS GENERATION
FOR THE PLANET
FOR REAL LIFE
FOR THIS GENERATION
FOR THE PLANET
FOR REAL LIFE
FOR THIS GENERATION
FOR THE PLANET
FOR REAL LIFE
FOR THIS GENERATION
FOR THE PLANET
FOR REAL LIFE
FOR THIS GENERATION
FOR THE PLANET
FOR REAL LIFE
FOR THIS GENERATION
FOR THE PLANET
FOR REAL LIFE
nothing is tmi here—we promise.
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Each pair has a built-in liner that absorbs period blood. Kt Period Underwear is categorized by lightest, medium and heavy flows so you can find the right pair for your teen’s needs.

All of our period underwear, swimwear, reusable pads, and activewear have our patented leakproof technology built right in. Liner’s are discreet and comfortable, and fit for your teen’s unique flow. 

That’s up to your teen or tween! Every flow and comfort level is different.

Depending on the absorbency level of the period underwear and the heaviness of your teen’s flow, they can wear our period undies on their own or as a backup to tampons or menstrual cups. 

We always recommend they choose an option that makes them feel most confident!

Step 1: Give your teens underwear a quick rinse under cold water.
Step 2: Throw it in the washing machine with your regular clothes. Wash on cold with mild detergent (no softener or bleach).
Step 3: There are two ways to dry them depending on the undies you have: lay flat to dry for medium absorbency products, or tumble dry on low for high to super absorbency products.
Step 4: That’s it! No ironing needed.

Check out our size chart here. If you want some help, we have virtual fitters ready on deck to help you find your perfect fit. Book a video call with them today.

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 for 30 days!


If you ordered the wrong size of period underwear, we’ll send you a different pair at no cost or offer you a standard refund within 30 days of delivery (excluding original shipping fees).


If your order included multiple period underwear, open, wash, and wear one pair only. That way if you don’t love them, any unopened packages from the same purchase will be eligible for an exchange or standard refund (excluding original shipping fees).


All unopened packages will be donated to local organizations to support people in need.


Underwear purchased as part of the Period Party Sale is eligible for exchange or store credit only. No refunds. Sale items are not eligible for our First Pair Risk Free Policy.


Super Sleepover Shorts and Reusable Pads purchased as part of the Period Party Sale are final sale. No exchanges or refunds can be accommodated.

 COMFORTABLE
ABSORBENT
JUST PLAIN BETTER
REUSABLE
COMFORTABLE
ABSORBENT
JUST PLAIN BETTER
REUSABLE
COMFORTABLE
ABSORBENT
JUST PLAIN BETTER
REUSABLE
COMFORTABLE
ABSORBENT
JUST PLAIN BETTER
REUSABLE
COMFORTABLE
ABSORBENT
JUST PLAIN BETTER
REUSABLE
COMFORTABLE
ABSORBENT
JUST PLAIN BETTER
REUSABLE
COMFORTABLE
ABSORBENT
JUST PLAIN BETTER
REUSABLE
COMFORTABLE
ABSORBENT
JUST PLAIN BETTER
REUSABLE
Reviews
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average rating 4.6 out of 5
Based on 98 reviews
  • 5 Stars
    82 Reviews
  • 4 Stars
    8 Reviews
  • 3 Stars
    2 Reviews
  • 2 Stars
    1 Review
  • 1 Star
    5 Reviews
93% of reviewers would recommend this product to a friend
Quality
Rated 4 out of 5
Comfort
Rated 4 out of 5
Sizing
Rated 0 on a scale of minus 2 to 2, where minus 2 is Fits Small, 0 is True to Size and 2 is Fits Large
Effectiveness
Rated 4 out of 5
98 Reviews
Reviewed by Julia M.
Verified Buyer
Super Leakproof™ No-Show Underwear Boyshort
Reviewing
Super Leakproof™ No-Show Underwear Boyshort
I recommend this product
I'm a...
Parental Figure
I purchased for...
A Teenager/Tween
Pant Size
Kids 12-14
Size Purchased
S
Usage
  • Period
Rated 5 out of 5
Review posted

Boy shorts

My girls love the fit. Super comfy fabric!

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Quality
Rated 5 out of 5
Comfort
Rated 5 out of 5
Sizing
Rated 0 on a scale of minus 2 to 2, where minus 2 is Fits Small, 0 is True to Size and 2 is Fits Large
Effectiveness
Rated 5 out of 5
Was this helpful?
Reviewed by Sue C.
Verified Buyer
Super Leakproof™ No-Show Underwear Boyshort
Reviewing
Super Leakproof™ No-Show Underwear Boyshort
I recommend this product
I'm a...
Parental Figure
I purchased for...
A Teenager/Tween
Pant Size
Teen 12-16
Size Purchased
M
Usage
  • Period
Rated 5 out of 5
Review posted

Great underwear for teens

Comfy and easy to wash

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Quality
Rated 5 out of 5
Comfort
Rated 5 out of 5
Sizing
Rated 0 on a scale of minus 2 to 2, where minus 2 is Fits Small, 0 is True to Size and 2 is Fits Large
Effectiveness
Rated 5 out of 5
Was this helpful?
Reviewed by Eve T.
Verified Buyer
Super Leakproof™ No-Show Underwear Boyshort
Reviewing
Super Leakproof™ No-Show Underwear Boyshort
I recommend this product
Rated 5 out of 5
Review posted

Great

For overnights or heavy days!

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Reviewed by Eve T.
Verified Buyer
Super Leakproof™ No-Show Underwear Boyshort
Reviewing
Super Leakproof™ No-Show Underwear Boyshort
I recommend this product
Rated 5 out of 5
Review posted

Fantastic

My daughter wears these and has zero complaints. She is neuro-spicy and it is very hard to find garments in general for her, due to extreme sensory issues. This is one area I was really nervous about with her getting older, but these undies make it a non issue. She is eat with underwear and bathing suits, which was an investment, but I am happy to not worry about pads and tampons for her and no meltdowns because she is uncomfortable. I believe we will save money on products in the long run and produce less waste. Hallelujah

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Reviewed by Michelle B.
Verified Buyer
Super Leakproof™ No-Show Underwear Boyshort
Reviewing
Super Leakproof™ No-Show Underwear Boyshort
I recommend this product
I'm a...
Parental Figure
I purchased for...
A Teenager/Tween
Pant Size
Kids 12-14
Size Purchased
S
Usage
  • Primary Protection
Rated 5 out of 5
Review posted

Great

Purchase as a precautionary thing and my daughter wears them every day. Very comfortable

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Quality
Rated 5 out of 5
Comfort
Rated 5 out of 5
Sizing
Rated 0 on a scale of minus 2 to 2, where minus 2 is Fits Small, 0 is True to Size and 2 is Fits Large
Effectiveness
Rated 3 out of 5
Was this helpful?