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Home / Bikini Underwear / Super Leakproof® No-Show Bikini
Best Seller

Super Leakproof® No-Show Bikini

$32.00 CAD

Mix, Match & Save: 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

Julie has 33.5” hips and wears KNIX S | Dark Cherry

Julie has 33.5” hips and wears KNIX S

| Dark Cherry
Julie has 33.5” hips and wears KNIX S | Dark Cherry

Julie has 33.5” hips and wears KNIX S

Julie has 33.5” hips and wears KNIX S | Dark Cherry

Julie has 33.5” hips and wears KNIX S

| General
| General

Julie has 33.5” hips and wears KNIX S

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: Dark Cherry 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

Sale & Last Call

Items discounted 30% and below are eligible for size exchange or store credit. Items discounted above 30% and above are final sale – no refunds, store credits, or exchanges can be accommodated.

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

- Reviewed

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

Julie has 33.5” hips and wears KNIX S | Dark Cherry
| Dark Cherry
Julie has 33.5” hips and wears KNIX S | Dark Cherry
Julie has 33.5” hips and wears KNIX S | Dark Cherry
| General
| General

How to Choose?

Essential

Drop
Drop
Drop
Drop
Drop
  • • Days you don’t need leak protection. Everyday freshness and moisture wicking.
  • tsp
    0 tsp

Heavy

Drop
Drop
Drop
Drop
Drop
  • • Extra peace of mind. For the first days of your cycle, light bladder leaks, or a full night's sleep without a leak.
  • 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
  • • Daily freshness. For sweat, discharge, period spotting, or backup protection.
  • 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
  • • For mid-cycle flow, surprise cough or sneeze leaks, or a really sweaty spin class.
  • 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
  • • Ultimate peace of mind. For the heaviest period days, light bladder leaks, unexpected postpartum flow, or overnight protection.
  • 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.

Our Best-Selling Underwear

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Leakproof UltraThin No-Show High Rise

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Leakproof UltraThin No-Show Bikini

$27.00 CAD
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Color: Shimmer Cherry Limited Edition

Leakproof UltraThin No-Show French Cut

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SuperPlus Leakproof® No-Show High Rise

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Super Leakproof® Dream Team 2-Pack

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The Full Cycle Kit - Bikini

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4.6
Rated 4.6 out of 5 stars
Based on 3,305 reviews
Total 5 star reviews: 2.6k Total 4 star reviews: 404 Total 3 star reviews: 139 Total 2 star reviews: 98 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)
3,305 reviews
  • Rated 5 out of 5 stars
    3 minutes ago
    I like it.

    It is comfortable and works well so far. Compared to my pants size medium, I learned to order these small as these are more stretchy and it stays on better this way for me.

    Kajin L.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    13 hours ago
    Love it!

    I have mild incontinence after having my son and these underwear mean no more pads! They are comfortable and fit great, I can't wait to buy more.

    Leah Z.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 week ago
    My go to’s

    These are great and high quality.

    Pam W.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 week ago
    5 Stars

    Tres bonne qualité, et service apres vente au top

    Juliette
    Was this helpful?
  • Rated 5 out of 5 stars
    1 week ago
    Super leakproof no-show bikini

    Comfortable, great fit

    Gaynor B.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 weeks ago
    Comfortable and fancy

    Like it so much

    Susan
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    Super leakproof

    These bikinis are great. They really are leakproof. And so comfortable.

    Kathleen T.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    4

    Good

    Wava B.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    Super Leakproof No-Show Bikini is SUPER!

    This product is incredible. It is exactly as advertised.

    Larry B.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    Awesome

    Amazing underwear I use them my period.

    Maxine K.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 months ago
    5 Stars

    I purchased the packs from Costco for my teen daughter and she loves them so much she doesn't want to use pads anymore and doesn't even want to wear regular underwear anymore. She swears by these and begged me to buy more.

    Wendy
    Was this helpful?
  • Rated 5 out of 5 stars
    2 months ago
    Super Leakproof No Show Bikini

    Arrived as expected and on time. I am using these as backups for heavy nights and unexpected travel days.

    Stephanie L.
    Verified Buyer
    Was this helpful?