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Color:
Flash Sale ⚡️

Color: Cheetah Print Limited Edition

Size:

Size:

Size and Fit Guide

25% off
Rewards Members Earn 0 Points
Flash Sale ⚡️

Light Leakproof No-Show French Cut

$18.75 CAD

$25.00

25% off
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Absorbs about 1 regular tampon

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Invisible under clothes

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Perfect for daily wear

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Machine washable

Leslie has 49” hips, wearing KNIX XXL  | Black

Leslie has 49” hips, wearing KNIX XXL

| Black
Leslie has 49” hips, wearing KNIX XXL  | Black

Leslie has 49” hips, wearing KNIX XXL

Leslie has 49” hips, wearing KNIX XXL  | Black

Leslie has 49” hips, wearing KNIX XXL

| General

Leslie has 49” hips, wearing KNIX XXL

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 18 Points

Comfort-First Fit

A French-cut silhouette that sits at the natural waistline and provides medium bum coverage.

Worry-Free Protection

Our original leakproof technology provides a barely noticeable feel. Patented bonded edges help prevent side leaks.

Light Absorbency

Absorbs 1 regular tampon worth of liquid—perfect for light flow days, sweat and discharge, and backup protection for heavy flow days.

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.

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Leslie has 49” hips, wearing KNIX XXL  | Black
| Black
Leslie has 49” hips, wearing KNIX XXL  | Black
Leslie has 49” hips, wearing KNIX XXL  | 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 1 regular tampon 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 1,517 reviews
Total 5 star reviews: 1.2k Total 4 star reviews: 145 Total 3 star reviews: 67 Total 2 star reviews: 48 Total 1 star reviews: 42
91%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 0.1 on a scale of minus 2 to 2
Ease of UseRated 4.7 on a scale of 1 to 5
1,517 reviews
  • Rated 5 out of 5 stars
    5 days ago
    So comfortable

    Super comfortable - but ended up going with the large over medium, as medium felt tight around the waist.

    Marcia M.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 week ago
    My Fav Undies

    Best undies ever. The light leakproof gives me peace of mind, they look good, and they are comfortable.

    Diana M.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 week ago
    The best Panties ever..

    They are the best underwear I have ever purchased ,I have to say they are alittle pricey but well worth it…

    Nancy M.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 weeks ago
    Comfortable fit

    Very comfortable. Would definitely recommend the French cut .

    Aimee G.
    Verified Buyer
  • Rated 4 out of 5 stars
    2 weeks ago
    Waterproof undies

    Love them for little leaks but expensive

    Kelli C.
    Verified Buyer
  • Rated 2 out of 5 stars
    2 weeks ago
    Keeps rolling down

    I'm not sure if it's a sizing issue, but everything seems to fit well, just the underwear will not stop rolling down. Additionally, I wish Knix offered a low-rise leakproof underwear option. All of the leak-proof underwear are very high rise.

    Lisa B.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 weeks ago
    Sexy and comfy

    I have been in love with Knix's undies for years now and these ones are super sexy!

    I am relatively short at 160cm (5'3") and they still look great without acting like a thong.

    My only small complaint would be about the top part which tends to roll down a bit, especially if you've got curves.

    Other than that - they are great - the absorption pad is big enough and finally looks well sewn. I only hope the side stitches won't start falling apart after 6 months.

    Overall - recommended model.

    Dimana D.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 weeks ago
    Love them!

    I love how lightweight they are and that they’re completely invisible with leggings!

    Crystal W.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    Awesome discovery

    I love these briefs. The fit is perfect. Great for travel. This product is life changing.

    Gwen G.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    Thanks for solving my problem

    They are working for me. Comfortable and cotton. All good!

    Debra L.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    Amazing

    My first time buying and so happy with the quality. They really do not show panty lines through your pants and are so comfortable

    Samantha M.
    Verified Buyer
  • Rated 1 out of 5 stars
    3 weeks ago
    Rides up immediately

    Never comfortable. All they did was ride up immediately. Returned but only for store credit. Can’t find anything that works. Sorry.

    Kathy M. S.
    Verified Buyer