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Color: Black
Best Seller

Color: Black

Size:

Size:

Size and Fit Guide

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

Super Leakproof® No-Show High Rise

$36.00 CAD

Mix & Match: 3+ for $25 each
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Absorbs about 4 super tampons

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Invisible under clothes

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Extended gusset for extra protection

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Machine washable

| Black
| Black
| Black
| Black
  | General
| Black
  | General

Color: Black

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 36 Points

"Knix actually devised a super thin nylon-Spandex pair which is virtually invisible under clothing."

- Business Insider

Comfort-First Fit

Sits at the natural waistline and provides medium bum coverage.

Worry-Free Protection

Patented bonded edges help prevent side leaks.

Heavy Absorbency

Absorbs 4 super tampons worth of liquid—perfect for heavy flow days, overnight protection, and light bladder leaks.

No-Show Style

Made from our signature buttery soft fabric with a wide, comfortable waistband. Wear it on its own or under your favorite pajamas.

Easy to Wash

Machine washable just like regular underwear.

Zoom

| Black
| Black
| Black
| Black
  | General
| Black
  | 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
PATENTED LEAKPROOF TECHNOLOGY

Built-in protection that feels like nothing at all

Our original Fresh Fix Technology® features a built-in absorbent liner absorbing about 4 super tampons worth of liquid so you feel fresh and in-control.

Soft Top Layer

Soft Top Layer

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

4.6
Rated 4.6 out of 5 stars
Based on 4,776 reviews
Total 5 star reviews: 3.8k Total 4 star reviews: 519 Total 3 star reviews: 189 Total 2 star reviews: 111 Total 1 star reviews: 160
92%would recommend these products
ComfortRated 4.7 on a scale of 1 to 5
EffectivenessRated 4.6 on a scale of 1 to 5
FitRated 0.2 on a scale of minus 2 to 2
Ease of UseRated 4.8 on a scale of 1 to 5
4,776 reviews
  • Rated 5 out of 5 stars
    2 weeks ago
    5 Stars

    Buttery soft and excellent fit!

    Melanie
    Verified Buyer
  • Rated 5 out of 5 stars
    2 weeks ago
    Leakproof underwear!

    Love them!

    Lynette E.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    Love these

    The best absorbency ever. It’s all I wear. I even sleep in them. I won’t but anything else. I used to wear a different brand and switched and never went back. I thoroughly can’t recommend these enough! Try them. You’ll love them.

    Margo S.
    Verified Buyer
  • Rated 2 out of 5 stars
    3 weeks ago
    Comfy but not full coverage

    I bought these for my period. This is my first time wearing them and the gusset is only a few inches long. There is blood all over the back of the underwear and my pants and I’m on a lighter medium day and have had them on for less than hour. I’m not sure why the leak protection area wouldn’t go up higher. I’m upset I bought several these on clearance and cannot return the other pairs I purchased

    They also keep rolling down my belly.

    Sarah
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    very pretty

    lovely buttery yellow color and the comfort you come to expect with knix products

    Janis A.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    Super leakproof

    They fit well and they wash well

    Maria C.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    Love new color and cotton fiber

    I like the comfort of the cotton panties and the mellow yellow color.

    Helen M.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    I have purchase several pairs of these

    Very comfortable. Even though it is recommended that they not be washed in hot and dried in the drier I now do and they are lasting really well.

    Randi E.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    Secondcround

    I was so satisfied with my firstv3cpair I ordered 3 more..I've been havinfcduch an issue with incontinence due to meds. They can't hold everything but they sure make me feel secure with most.

    Rita G.
    Verified Buyer
  • Rated 3 out of 5 stars
    1 month ago
    3 Stars

    The gusset (pad area) needs to be longer in the front for better coverage area

    Kyla
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    Amazing !

    I’m no longer afraid to sneeze, or cough or laugh too hard. Knix leakproof are the best, goodbye bulky pads & liners.

    Highly recommend !!!

    Amy H.
    Verified Buyer
  • Rated 3 out of 5 stars
    1 month ago
    Too big

    I otderered a size too big

    Susan P.
    Verified Buyer