Your Bag

Your cart is empty

But you're full of potential..

You Might Also Like

| Black
Light Leakproof No-Show Bikini
$25.00 CAD

Color: Black
Best Seller

Color: Black

Size:

Size:

Size and Fit Guide

Mix & Match: 3+ for $20 each
Rewards Members Earn 0 Points

Suggestions

Top Picks

Revolution Scoop Bra

$68.00 CAD
10% off Bra & Underwear Sets*

Color: Cheetah Print Limited Edition

Catalyst Sports Bra

$72.25 CAD
$85.00
15-30% off

Color: Black

Leakproof UltraThin No-Show High Rise

$32.00 CAD
Mix & Match: 3+ for $25 each

Color: Cosmic Limited Edition

Super Leakproof® Dream Short

$48.00 CAD
Mix & Match: 3+ for $33 each

Color: Black

Home / Shop All Teen / Teen Super Leakproof® No-Show Boyshort
KnixTeen

Teen Super Leakproof® No-Show Boyshort

$29.00 CAD

Bundle & Save: 3 for $75
Checkmark

Absorbs about 3 super tampons

Checkmark

Invisible under clothes

Checkmark

Machine washable

| Mood Ring
| Mood Ring
| Mood Ring
| General

Absorbency: Heavy

Heavy
Drop
Drop
Drop
Drop
Drop
about 3-6 super tampons
Light
Drop
Drop
Drop
Drop
Drop
about 1-3 regular tampons
Moderate
Drop
Drop
Drop
Drop
Drop
about 2-3 super tampons

Color: Mood Ring Limited Edition

Size:

True to Size

•

Size:

Size and Fit Guide

Leakproof Underwear is Sales Tax Free in Canada*
Free Shipping on orders $100+

Shipping

Shipping
Processing Timelines

Please allow 1-2 business days for our warehouse team to pack and ship your order. During peak periods such as sales, holidays and product launches, please allow up to 4 business days for us to process your order.

Delivery Time

For the most up-to-date delivery time estimates, please refer to the shipping timeline at checkout. Delivery timelines vary depending on location and do not include processing times.

Shipping Charges

Orders over $100* CAD = Free Shipping (2-6 business days)
Orders under $100* CAD = $12 CAD Shipping (1-3 business days)
Orders delivering to NWT, Nunavut and Yukon are subject to $20 delivery fee.*After discounts, before shipping and taxes.
Easy Exchanges within 30 Days

Returns

Returns
Free Returns

Knix covers the return shipping fees for exchanges and refunds initiated through our Return & Exchange Portal. Exchange orders initiated through our Return & Exchange portal are also eligible for free shipping within the USA and Canada. Please note, the shipping fees on your original order are non-refundable.

Return Policy

Return policy varies by product, please check if your item is refund or exchange eligible by viewing our full policy here.

Sale & Last Call

Items discounted below 30% are eligible for size exchange or store credit. Items discounted 30% and above are final sale – no refunds, store credits, or exchanges can be accommodated.
Rewards Members Earn 29 Points

You May Also Like

Teen Super Leakproof® No-Show Bikini

$29.00 CAD

Teen Super Leakproof® No-Show High Rise

$32.00 CAD

Teen Super Leakproof® Sleepover Short

$45.00 CAD

Comfort-First Fit

Boyshort silhouette with a mid-rise fit and extra hip and bum coverage.

Worry-Free Protection

Patented bonded edges help prevent side leaks.

Heavy Absorbency

Absorbs about 3 super tampons worth of liquid—perfect for heavy flow days, overnight protection, and light bladder leaks.

No-Show Style

Buttery-soft and smooth fabric gives a seamless look and feel. Disappears under clothes, even leggings.

Easy to Wash

Machine washable just like regular underwear.

Zoom

| Mood Ring
| Mood Ring
| Mood Ring
| General

How to Choose?

Essential

Drop
Drop
Drop
Drop
Drop
  • • Everyday Wear
  • • No leakproof protection
  • tsp
    0 tsp

Heavy

Drop
Drop
Drop
Drop
Drop
  • • heavy period days
  • • overnight protection
  • • light bladder leaks
  • tsp
    6-11 tsp
  • pad
    about 1.5-3 regular pads
  • tampon
    about 3-6 super tampons
  • cup
    about 1-2 menstrual cups

Light

Drop
Drop
Drop
Drop
Drop
  • • light period days
  • • sweat
  • • sweat and discharge
  • tsp
    about 1-3 tsp
  • pad
    about 1-3 pantyliners
  • tampon
    about 1-3 regular tampons
  • cup
    about 0.5 menstrual cups

Moderate

Drop
Drop
Drop
Drop
Drop
  • • moderate period days
  • • light bladder leaks
  • • sweat
  • tsp
    about 3-6 tsp
  • pad
    about 1-1.5 regular pads
  • tampon
    about 2-3 super tampons
  • cup
    about 0.5-1 menstrual cups

Ultra

Drop
Drop
Drop
Drop
Drop
  • • extra heavy period days
  • • overnight protection
  • • light bladder leaks
  • tsp
    13-17 tsp
  • pad
    3.5-4.5 regular pads
  • tampon
    7-9 super tampons
  • cup
    2-3 menstrual cups
FRESH FIX TECHNOLOGY®

Built-in protection that feels like nothing at all.

It absorbs about 3-6 super tampons worth of liquid.

Soft Top Layer

Soft Top Layer

Gently wicks away moisture, keeping you feeling fresh and odour-free.

Explore Best-Sellers

Catalyst Sports Bra

$72.25 CAD
$85.00
15-30% off

Color: Black

Revolution V-Neck Bra

$68.00 CAD
10% off Bra & Underwear Sets*

Color: Cosmic Limited Edition

Leakproof UltraThin No-Show High Rise

$32.00 CAD
Mix & Match: 3+ for $25 each

Color: Warm Sand

Revolution Scoop Bra

$68.00 CAD
10% off Bra & Underwear Sets*

Color: Cheetah Print Limited Edition

Super Leakproof® Dream Short

$48.00 CAD
Mix & Match: 3+ for $33 each

Color: Black

WingWoman Contour Bra

$75.00 CAD
10% off Bra & Underwear Sets*

Color: Warm Sand

Leakproof UltraThin No-Show Bikini

$27.00 CAD
Mix & Match: 3+ for $25 each

Color: Cheetah Print Limited Edition

Light Leakproof No-Show High Rise

$29.00 CAD
Mix & Match: 3+ for $20 each

Color: Warm Sand

4.8
Rated 4.8 out of 5 stars
Based on 340 reviews
Total 5 star reviews: 294 Total 4 star reviews: 29 Total 3 star reviews: 8 Total 2 star reviews: 3 Total 1 star reviews: 6
96%would recommend these products
ComfortRated 4.8 on a scale of 1 to 5
FitRated -0.3 on a scale of minus 2 to 2
EffectivenessRated 4.6 on a scale of 1 to 5
Ease of UseRated 4.8 on a scale of 1 to 5
Write a Review (Opens in a new window)
340 reviews
  • Rated 5 out of 5 stars
    1 week ago
    BEST Period Protection for Teens

    These are hands down the BEST period protection panties for teens! They offer superior leak control all while being very light weight and breathable. In addition KT by Kinx is the PERFECT size for preteen and teen bodies.

    Jenn N.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 weeks ago
    Knix teen

    Love these for my teen

    Francesca A.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    Love these!

    ter loves these! Comfortable and gives her piece of mind during her monthly cycle!

    Sarah L.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    Love the fit and feel

    Not like other “bulky” period underwear. These are fashionable, sleek, and comfortable. My daughter loves how they fit and feel.

    Katrina V.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    Excellent fit and feel!

    My daughter loves how these underwear look, fit, and feel. She says they aren’t too bulky and you can’t tell they’re period underwear. She’s quite picky too so this is saying a lot!

    Katrina V.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    Love

    Cute color! Super fun for period underwear and still totally leakproof

    Chloe N.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 months ago
    I wear them all the time!

    The most comfy underwear I own. Newly postpartum and they work well for bladder leaks and the rest of it. Even have had to order some for my daughter. No more disposable period products for us.

    Julia M.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 months ago
    Very similar to the women's style...

    ...but with a little slimmer fit around the leg, and a fun young print. I'm 35 and I found it just as comfy as the women's undies. My hips are 45" and I bought XL.

    Ashley G.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 months ago
    Great Fit

    My grand daughters said they like the fit of these underwear items and feel comfortable while wearing them.

    Patricia K.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 months ago
    5 Stars

    Ready to order and ready to use. My tween loves this option.

    Keena
    Was this helpful?
  • Rated 5 out of 5 stars
    3 months ago
    Worked great

    My teen loves these. Works well for her. No issues at all.

    Jenise L.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 months ago
    Great!

    My kids like them, are comfortable.

    Jennifer A.
    Verified Buyer
    Was this helpful?