Light Leakproof No-Show Underwear Boyshort 3-Pack - Flash Sale

These period undies protect teens against leaks, sweat, and discharge. A classic silhouette made from soft, stretchy, quick-drying fabric with a thin liner that absorbs the same as about 1 regular tampon. Wear them as everyday underwear, as full protection on light days, or backup on heavy days.

Key Features:

- Quick-Drying

- Moisture and Sweat Wicking

- Absorbs the same as about 1 regular pantyliner/tampon

- Super soft & stretchy

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

- Patented leakproof technology

This 3-pack is made for your teen’s period days, lazy days and everyday.
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Heavy Absorbency

Absorbs about the same as 3 super tampons. Perfect for overnight protection or your teens heaviest days when changing into a fresh pair might not be convenient.


Moderate Absorbency

Absorbs about 2.5 super tampons' worth of blood. Ideal for medium period days, discharge and sweat.


Light Absorbency

Absorbs about the same as about 1 regular tampon worth of blood, sweat or discharge. Ideal for lightest period days, spotting, sweat and discharge.

Each pair has a built-in liner that absorbs period blood. Kt Period Underwear is categorized by light, moderate 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 your teen find their 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 your teen can try their 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.

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Sustainable
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Absorbent
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Comfortable
Image of a chrome heart surrounding text
Sustainable
Image of a chrome heart surrounding text
Absorbent
Image of a chrome heart surrounding text
Comfortable
Image of a chrome heart surrounding text
Sustainable
Image of a chrome heart surrounding text
Absorbent
Image of a chrome heart surrounding text
Comfortable
Image of a chrome heart surrounding text
Sustainable
Image of a chrome heart surrounding text
Absorbent
Image of a chrome heart surrounding text
Comfortable
Image of a chrome heart surrounding text
Sustainable
Image of a chrome heart surrounding text
Absorbent
Image of a chrome heart surrounding text
Comfortable
Image of a chrome heart surrounding text
Sustainable
Image of a chrome heart surrounding text
Absorbent
Image of a chrome heart surrounding text
Comfortable
Image of a chrome heart surrounding text
Sustainable
Image of a chrome heart surrounding text
Absorbent
Image of a chrome heart surrounding text
Comfortable
Image of a chrome heart surrounding text
Sustainable
Image of a chrome heart surrounding text
Absorbent
Image of a chrome heart surrounding text
Comfortable
Image of a chrome heart surrounding text
Sustainable
Image of a chrome heart surrounding text
Absorbent
Image of a chrome heart surrounding text
Comfortable
Image of a chrome heart surrounding text
Sustainable
Image of a chrome heart surrounding text
Absorbent
Image of a chrome heart surrounding text
Comfortable
Image of a chrome heart surrounding text
Sustainable
Image of a chrome heart surrounding text
Absorbent
Reviews
average rating 4.7 out of 5
Based on 198 reviews
  • 5 Stars
    162 Reviews
  • 4 Stars
    17 Reviews
  • 3 Stars
    12 Reviews
  • 2 Stars
    1 Review
  • 1 Star
    6 Reviews
91% 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
Fit
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
Review posted
Reviewed by Amber L.
Verified Buyer
I'm a...
Adult
I purchased for...
Myself
Pant Size
Teen 12-16
Size Purchased
S
Usage
  • Back-up Protection
  • Period
  • Other
Rated 5 out of 5

Still my favourites!

I've been wearing these underwear for years now, and they make period days and everyday life so much better that I continue to repurchase when my old ones get worn out.

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I recommend this product
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
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Review posted
Reviewed by Marie-Pier L.
Verified Buyer
I'm a...
Parental Figure
I purchased for...
A Teenager/Tween
Pant Size
Teen 4-10
Size Purchased
XS
Usage
  • Period
Rated 5 out of 5

Perfect

Bought these for my daughter she loves them!!

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I recommend this product
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
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Review posted
Reviewed by Stella A.
Verified Buyer
Light Leakproof No-Show Underwear Boyshort - Clearance
Reviewing
Light Leakproof No-Show Underwear Boyshort - Clearance
Rated 5 out of 5

Really like these underware

These are all so comfortable to wear.

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Review posted
Reviewed by Karen G.
Verified Buyer
Light Leakproof No-Show Underwear Boyshort - Clearance
Reviewing
Light Leakproof No-Show Underwear Boyshort - Clearance
Rated 5 out of 5

Boyshort

This cut is my favorite cut ,and love how it’s seamless as well. I am usually a large and with the knix undies medium is a better option for me.

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Review posted
Reviewed by Lori B.
Verified Buyer
Light Leakproof No-Show Underwear Boyshort - Clearance
Reviewing
Light Leakproof No-Show Underwear Boyshort - Clearance
I'm a...
Parental Figure
I purchased for...
A Teenager/Tween
Pant Size
Teen 00-2
Size Purchased
M
Usage
  • Primary Protection
Rated 5 out of 5

Perfect for every day!!

Amazing! Gives my daughter the confidence to wear them every day and go with the flow…see what I did there?! Great products, recommend to anyone at any age!

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I recommend this product
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?