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Color: Black
Best Seller

Color: Black

Size:

Size:

Size and Fit Guide

Mix & Match: 3+ for $20 each
Rewards Members Earn 0 Points
Best Seller

Super Leakproof® No-Show Bikini

$32.00 CAD

Mix & Match: 3+ for $25 each
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Absorbs about 4 super tampons

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Invisible under clothes

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Extended gusset for extra protection

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Machine washable

| Warm Sand
| Warm Sand
| Warm Sand
| General
| Warm Sand
| General
| General

Color: Warm Sand

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

"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 4 tampons worth of liquid—perfect for heavy flow days, overnight protection, and light bladder leaks.

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.

Zoom

| Warm Sand
| Warm Sand
| Warm Sand
| General
| Warm Sand
| 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
    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 4 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 1,920 reviews
Total 5 star reviews: 1.5k Total 4 star reviews: 229 Total 3 star reviews: 91 Total 2 star reviews: 46 Total 1 star reviews: 53
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 0.2 on a scale of minus 2 to 2
Ease of UseRated 4.8 on a scale of 1 to 5
1,920 reviews
  • Rated 5 out of 5 stars
    3 weeks ago
    Sleek

    No show is the way to go.

    Mary P.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    Best invention ever, for women

    I love them!! Couldn’t be happier. I’m a 60+ woman with bladder issues. I have had to rely on them a few times now. The first time I was in a panic, no washroom available. But no problem. There was no show and no smell, I’m so thankful for that!

    Washing and drying is so easy! And there ready to wear again

    Jo-Anne G.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    5 Stars

    Love these for heavy days! So good

    Terri
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    Super Leakproof No Show Bikini

    Loved the style, fit and color.

    Mary J. D.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    Super leakproof no show bikini

    Very comfortable . Excellent material for your daily needs. Highly recommendable

    Catherine U.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    Perfect fit!

    These briefs are a perfect fit. The material is lightweight and the gusset extremely absorbent.

    I did go up one size as I prefer a roomier fit.

    Ingrid D.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    Works well

    No complaints. They’re comfortable, fit well, and have been great for my heavier days.

    Amanda E.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    Very comfortable

    Love the bikini fit panties

    I don’t normally buy pink, but I really like the shade of this pink

    Cindy E.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    Super comfy

    It’s nicely. very comfortable.

    Cindy E.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    So comfy

    Love the bikini underwear, fits nicely

    Cindy E.
    Verified Buyer
  • Rated 4 out of 5 stars
    1 month ago
    4 Stars

    These run a little small so will size up next pair I get but they are very comfortable!

    Elise
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    Super Leakproof Bikini

    As with previous purchases I’m impressed. Love the colour.

    Frances R.
    Verified Buyer