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Home / Shop All / Super Leakproof® No-Show Bikini
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Super Leakproof® No-Show Bikini

$22.40 CAD

$32.00

30% off
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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
| General

Absorbency: Heavy

Heavy
Drop
Drop
Drop
Drop
Drop
about 4-7 super tampons
Essential
Drop
Drop
Drop
Drop
Drop
No Absorbency
Light
Drop
Drop
Drop
Drop
Drop
about 1-3 regular tampons
Moderate
Drop
Drop
Drop
Drop
Drop
about 2-4 super tampons
Ultra
Drop
Drop
Drop
Drop
Drop
about 7-11 super tampons

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.
Black Friday Return Policy

Returns

Returns
Black Friday Sale & Last Call

Items discounted at 30% or below are eligible for a size exchange or store credit. Refunds are not available for these items. Items discounted above 30% are considered final sale and are not eligible for refunds, store credits, or exchanges. Items marked “Clearance” are also final sale and cannot be returned, exchanged, or refunded. No exceptions.
Rewards Members Earn 22 Points

"These stylish panties fit comfortably and weren't noticeable under tight clothes."

- Reviewed

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Comfort-First Fit

Classic mid-rise silhouette with provides medium hip and 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.

Zoom

| Black
| Black
| Black
| Black
| General
| 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.

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4.6
Rated 4.6 out of 5 stars
Based on 3,285 reviews
Total 5 star reviews: 2.6k Total 4 star reviews: 403 Total 3 star reviews: 136 Total 2 star reviews: 96 Total 1 star reviews: 100
93%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 4.8 on a scale of 1 to 5
Write a Review (Opens in a new window)
3,285 reviews
  • Rated 5 out of 5 stars
    3 days ago
    Love super absorbing

    Love these super Absorbent comfy undies

    Leah S.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    5 days ago
    Good fit

    I like the way they fit. I like the way they feel. They do a good job at containing the urine.

    Susan W.
    Verified Buyer
    Was this helpful?
  • Rated 4 out of 5 stars
    1 week ago
    My favorite fit

    These underwear run small so I have to order a size up but the bikini cut works the best for my large hips. Very comfortable and full leak protection.

    Darlina B.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 week ago
    Fantastic

    Perfect for my teens!

    Chelsea C.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 weeks ago
    Very Comfortable

    I forgot that I had my period, as if I am wearing a normal panties

    Joelle D.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 weeks ago
    Tried and True

    I love using these as backup during my period and even towards the end when my flow is lighter. They’re very comfortable, not too bulky where I feel like I’m wearing a pad, and sit well under my clothes.

    Cara H.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 weeks ago
    Zero leaks

    My wife loves the panties so I bought more

    Ale S.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 weeks ago
    Long Lasting

    I just bought more of these because the ones I bought 6 years ago finally fell apart. I love these! Also great for sweaty workouts.

    Kristen P.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 weeks ago
    Great coverage and fit

    Love the fit, super comfy. Coverage is great, no leakage at all!

    Lara N. M.
    Verified Buyer
    Was this helpful?
  • Rated 3 out of 5 stars
    1 month ago
    Leakproof no-show bikini

    No comfortable for my size. I tried it but won't be buying it again. I don't think it is meant for obese people.

    Maureen P.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    I’m so happy I found these!

    This was my second purchase of Knix underwear to build enough to make it all the way through my period without having to wash in the middle. I feel such a difference with these over disposable pads. I don’t chafe; and where I needed 6-8 super heavy disposable pads on a heavy day now I only need 3 pairs of the ultra leakproof underwear on those days. The super leakproof ones like this one are also great and I use them for my lighter days but I am a pretty heavy bleeder overall when I compare with people I know. I am so happy I found these!

    Melanie G.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    Simply the best

    I absolutely love these! I did go up a size from my typical size. They stay structured and fitted nicely all day. They washed very well and I felt so secure in these. I’ve since bought more.

    Katherine H.
    Verified Buyer
    Was this helpful?