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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
    about 8-14 tsp
  • pad
    about 1.5-3 regular pads
  • tampon
    about 4-7 super tampons
  • cup
    about 1.5-3 menstrual cups

Light

Drop
Drop
Drop
Drop
Drop
  • light period days
  • sweat
  • 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 4-8 tsp
  • pad
    about 1-1.5 regular pads
  • tampon
    about 2-4 super tampons
  • cup
    about 0.5-3 menstrual cups

Ultra

Drop
Drop
Drop
Drop
Drop
  • extra heavy period days
  • overnight protection
  • light bladder leaks
  • tsp
    about 15-20 tsp
  • pad
    about 1.5-2.5 super pads
  • tampon
    about 7-11 super tampons
  • cup
    about 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 6,248 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
6,248 reviews
  • Rated 5 out of 5 stars
    3 minutes ago
    Great

    Great

    Marlene P.
    Verified Buyer
  • Rated 5 out of 5 stars
    30 minutes ago
    Fav undies

    so comfy. Only style I wear.

    Sara P.
    Verified Buyer
  • Rated 5 out of 5 stars
    15 hours ago
    Panty review

    The panty is always tight at first but loosens up after several wearing. Absorbency is great for leaks.

    Nadine S.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 days ago
    Leakproof dream short

    Good quality

    Mary E. H.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 days ago
    Wish there were more colours

    What happened to all the fun colours? These are my favourite underware to buy. Haven’t bought a panty liner or pad since these. These rocked my world. Why can’t we have them in more colours?

    Ruth D.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 days ago
    Best fit

    Don’t want your pooch to hang out. Wear these. They are exceedingly comfortable and do amazing on LBL and period days

    Ruth D.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 days ago
    Love these wish that more colours were available

    These undies are amazing!

    Too bad all the other underwear are given the amazing colours and prints! These are the workhorse underware and they need the love too.

    Best for LBL and period days

    Ruth D.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 days ago
    Leakproof underwear

    Love my knix.

    Diane H.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 days ago
    Love these undies

    Quality is definitely improving. Works great with wicking moisture without feeling like I am wearing a diaper

    Jani L.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 days ago
    High rise

    I LOVE these panties. They fit me just right!!

    Sherry H.
    Verified Buyer
  • Rated 5 out of 5 stars
    4 days 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
    4 days ago
    Great

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

    Elizabeth H.
    Verified Buyer