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Color: Warm Sand
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Color: Warm Sand

Size:

Size:

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

Leakproof UltraThin No-Show High Rise

$32.00 CAD

Mix & Match: 3+ for $25 each
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Absorbs about 2.5 super tampons

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Invisible under clothes

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Moderate protection without the bulk

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Machine washable

| Rose Noir
| Rose Noir
| Rose Noir
| Rose Noir
| General
| General
| General

Color: Rose Noir 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 32 Points

“Best seamless absorbent underwear"

- Women's Health

High Rise Silhoutte

Sits just above the natural waist. Full coverage through the stomach, hip, and bum.

Moderate Absorbency

Absorbs 2.5 super tampons worth of liquid—perfect for moderate flow days, light bladder leaks, and sweat. The carbon cotton gusset top layer keeps you dry.

Worry-Free Protection

Perfect for moderate period days, light bladder leaks, and sweat. Moisture-wicking liner keeps you dry and comfortable.

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

| Rose Noir
| Rose Noir
| Rose Noir
| Rose Noir
| General
| General
| General

See My Size

Size XS fits hips 30

Size XS fits hips 30"-33"

Size S fits hips 34

Size S fits hips 34"-37"

Size M fits hips 38

Size M fits hips 38"-41"

Size XL fits hips 45

Size XL fits hips 45"-47"

Size XXL fits hips 48

Size XXL fits hips 48"-50"

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.

Our patented 360 LeakSeal™ technology locks in leaks at every edge. The ultra-thin liner absorbs about 2.5 super tampons worth of liquid.

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 989 reviews
Total 5 star reviews: 771 Total 4 star reviews: 105 Total 3 star reviews: 48 Total 2 star reviews: 23 Total 1 star reviews: 42
90%would recommend these products
ComfortRated 4.6 on a scale of 1 to 5
EffectivenessRated 4.6 on a scale of 1 to 5
FitRated 0.0 on a scale of minus 2 to 2
Ease of UseRated 4.6 on a scale of 1 to 5
989 reviews
  • Rated 4 out of 5 stars
    20 hours ago
    Leak proof underwear

    Works well, met with expectations

    Carla A.
    Verified Buyer
  • Rated 4 out of 5 stars
    Yesterday
    Panty leaks

    There good for light leaks I need the to buy for heavy leaks

    Teresa U.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 days ago
    Great alternative to panty liners

    Great alternative to panty liners

    Cathy M.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 days ago
    Great!

    5’10 170 lbs size 8/10 I have both medium and large. The medium is fine but I prefer the large especially during the first few days of my period. Very thin and comfortable.

    Breahna
    Verified Reviewer
  • Rated 1 out of 5 stars
    3 days ago
    Dissatisfied customer

    Rode up terribly on my leg

    So dissatisfied!

    Joanne D.
    Verified Buyer
  • Rated 5 out of 5 stars
    4 days ago
    Love this product

    these are amazing very comfortable to wear come in beautiful colors no show seams and gives a person piece of mind

    Mabel M.
    Verified Buyer
  • Rated 5 out of 5 stars
    4 days ago
    Leak proof underwear

    True to size, work to control odor and keeps me comfortable. No need to wear a liner anymore. Love this producr!

    Nicole G.
    Verified Buyer
  • Rated 5 out of 5 stars
    4 days ago
    Love them

    Like the low dots best.had also ordered theheavier flow but for me do not need that .

    Patricia C.
    Verified Buyer
  • Rated 4 out of 5 stars
    6 days ago
    Panties

    Perfect 👌🏻

    Louise L.
    Verified Buyer
  • Rated 2 out of 5 stars
    6 days ago
    Too high for us short waisted ladies

    I’m 5’6 but have a 33 inch leg inseam so pretty short waisted. These come to my ribs! Love Knix but looking for bum coverage and higher waist than my usual boyshort. I’ll be trying the new boy brief instead!

    Heather
  • Rated 5 out of 5 stars
    6 days ago
    I love everything about these undies!

    They are very comfortable, feel silky, don’t roll down in the front or dig into the top of my legs during the day - and I feel confident when I cough or sneeze!

    Anita W.
    Verified Buyer
  • Rated 5 out of 5 stars
    6 days ago
    Super High Rise

    So comfy and soft. True to size fit. Super high rise, like higher than all my high rise pants, but no complaints here.

    Samantha P.
    Verified Buyer