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Color: Warm Sand
New

Color: Warm Sand

Size:

Size:

Mix & Match: 3+ for $25 each
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New

Teen Super Leakproof® Sleepover Boxer

$45.00 CAD

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Absorbs about 7-9 super tampons

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Built in leakproof underwear

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Optimal overnight protection

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Machine washable

| Candy Heart
| Candy Heart
| Candy Heart
| Candy Heart

Color: Candy Heart 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 Returns 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 45 Points

You May Also Like

Comfort-First Fit

Combining a loose-fitting boxer with an internal brief for discreet Leakproof protection. Designed to be worn as both loungewear and overnight protection.

Worry-Free Protection

Designed with a built-in leakproof liner that fits snug to the body, it helps lock in leaks from every angle, even as you toss and turn.

Ultra Absorbency

Absorbs 7-9 super tampons' worth of liquid for overnight protection, heavy flow days, and light bladder leaks.

Machine Washable

Machine washable, just like regular underwear.

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| Candy Heart
| Candy Heart
| Candy Heart
| Candy Heart

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.

So you feel fresh and in-control. Absorbs ~ 7-9 Super tampons.

Soft Top Layer

Soft Top Layer

Gently wicks away moisture while keeping you feeling fresh and odor-free.

4.3
Rated 4.3 out of 5 stars
Based on 8 reviews
Total 5 star reviews: 4 Total 4 star reviews: 2 Total 3 star reviews: 2 Total 2 star reviews: 0 Total 1 star reviews: 0
75%would recommend this product
ComfortRated 4.0 on a scale of 1 to 5
FitRated 0.0 on a scale of minus 2 to 2
EffectivenessRated 4.0 on a scale of 1 to 5
Ease of UseRated 5.0 on a scale of 1 to 5
8 reviews
  • Rated 4 out of 5 stars
    18 seconds ago
    So cute!

    Great addition to teen loungewear. Bought for my daughter… perfect for sleepovers and hanging around the house! She really likes them. Great fit and comfortable.

    Alisa B.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 week ago
    Amazing

    I bought these for my daughter who is having issues with her heavy flow. She wore the sleepover boxers to school and didn't have any leaks. Will definitely be purchasing a couple more of these boxers.

    Shawna B.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    Pink Sleepover Boxer

    Finally something that is leak proof!

    Tina D.
    Verified Buyer
  • Rated 4 out of 5 stars
    1 month ago
    Good product!

    Wore it on a heavyish day and got no leaks! Also super easy to wash and super comfortable to wear. Only thing I wish is that it fit more snug in the pad area.

    Sadira K.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    THE BEST.

    I was a little hesitant at first as I tend to have nights where I move around a lot and was worried about still leaking. Wore these and now I want one of every pair. They’re super comfy to the point where I almost forgot I was on my period. Worth every cent, go grab yourself a pair.

    kayla a.
    Verified Buyer
  • Rated 3 out of 5 stars
    1 month ago
    Fit small

    Needs to be made to accommodate actual women’s size. Daughter is a small- med and medium were too tight in butt

    Christina F.
    Verified Buyer
  • Rated 3 out of 5 stars
    1 month ago
    Fit small

    Great idea but while the underwear part fits the shorts are too tight in the butt

    Christina F.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    The cutest boxers!

    Not only are these so cute and comfortable, but it absorbs a lot and is 100% leakproof which I love!! My new go to.

    Tiffany M.
    Verified Buyer