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Color: Warm Sand
New

Color: Warm Sand

Size:

Size:

Mix & Match: 3+ for $25 each
Rewards Members Earn 0 Points
New

Super Leakproof® No-Show High Rise

$36.00 CAD

Mix & Match: 3+ for $25 each
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Absorbs about 6 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

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 6 Super tampons worth of liquid—perfect for heavy flow days, overnight protection, and light bladder leaks.

No More Panty Lines

Made from our signature buttery-soft fabric and designed to be invisible under clothes, including leggings.

Easy to Wash

Machine washable just like regular underwear.

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| Black
| Black
| Black
| 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 3-6 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 6,238 reviews
Total 5 star reviews: 5k Total 4 star reviews: 672 Total 3 star reviews: 253 Total 2 star reviews: 141 Total 1 star reviews: 200
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
6,238 reviews
  • Rated 5 out of 5 stars
    4 minutes ago
    It’s a pretty silly pantry with a nice fit

    You won’t be happy with the other brands. These are comfortable and expensive looking that give secret protection.

    Heather S.
    Verified Buyer
  • Rated 4 out of 5 stars
    8 hours ago
    Great

    Comfortable, does the job. Smooth and silky not bulky.

    Elizabeth H.
    Verified Buyer
  • Rated 4 out of 5 stars
    17 hours ago
    My favourite undies

    I don't know why but the material differs in these from pair to pair. Some of my undies are VERY stretchy and others aren't, despite them being the same pair. Regardless, this is my favourite cut. They stay put and they don't show. My only complaint is that you can't put them in the dryer (I often do anyway, but they won't last nearly as long).

    Shelley P.
    Verified Buyer
  • Rated 3 out of 5 stars
    Yesterday
    NOT FOR ME

    I found the fit a little odd. I think I need to be able to buy full briefs rather than this style. I'm an extra large but parts of me were exposed in the front area. Not a style I was comfortable with; will try somewhere else with a granny pantie type of option. Once again padding felt too heavy

    Angele W.
    Verified Buyer
  • Rated 5 out of 5 stars
    Yesterday
    Absolutely love these

    Obsessed with the fit of these, great leakproof protection

    Alicia L.
    Verified Buyer
  • Rated 5 out of 5 stars
    Yesterday
    Leakproof high rise briefs

    Comfortable and durable. Fit great!

    Jane A. W.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 days ago
    Really Super

    I use these for bladder leaks. Wearing them , I go about my day with confidence and comfort.

    I recommend them to any and everyone.

    Being asthmatic I can suddenly begin to cough. This, in turn can causes a leak..

    Mary R.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 days ago
    5 Stars

    These are amazing and fit very well.

    Rebecca
  • Rated 5 out of 5 stars
    2 days ago
    leakproof underwear

    feels like regular underwear.

    Lynn L. m.
    Verified Buyer
  • Rated 4 out of 5 stars
    3 days ago
    No show high rise leakproof

    Love these undies, very comfortable and practical for light “laugh or sneeze” leak. Highly recommend

    Julie C.
    Verified Buyer
  • Rated 5 out of 5 stars
    4 days ago
    I no longer buy any other brand

    I no longer buy any other brand of panty and have tried many. Knix ate by far the best and I can’t boast enough. Love the silky soft material to the much appreciated leak proof undies!!

    Janis A.
    Verified Buyer
  • Rated 5 out of 5 stars
    4 days ago
    Loved!

    Love these so much! Comfy and cute!

    Emily S.
    Verified Buyer