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Color: Black
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Color: Black

Size:

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Size and Fit Guide

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

Leakproof Swim Skirt

$65.00 CAD

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Absorbs about 1 regular tampon

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High-rise fit

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Full coverage

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Premium UPF 50+ fabric

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Machine washable

Isabelle has 40

Isabelle has 40" hips and wears a Knix size M

| Black
Isabelle has 40

Isabelle has 40" hips and wears a Knix size M

Isabelle has 40

Isabelle has 40" hips and wears a Knix size M

Isabelle has 40

Isabelle has 40" hips and wears a Knix size M

Isabelle has 40

Isabelle has 40" hips and wears a Knix size M

| General

Isabelle has 40" hips and wears a Knix size M

Color: Black

Size:

True to Size

Size:

Size and Fit Guide

Free Shipping on orders $100+

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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.

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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 Returns 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.

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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 65 Points

"Kind of like your favorite tennis skirt but for swimming."

- StyleCaster

Swim in Style

A comfortable high-rise skirt with built-in bikini bottom for full bum coverage.

Worry-Free Protection

Discreet, built-in protection that absorbs about 1 regular tampon worth of liquid.

Stay Sun-Safe

Premium UPF 50+ fabric shields you from UV rays while you relax, swim, and play.

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Isabelle has 40
| Black
Isabelle has 40
Isabelle has 40
Isabelle has 40
Isabelle has 40
| 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
LEAKPROOF SWIM WORKS IN LAYERS

Built-in protection that feels like nothing at all.

Looks just like regular swimwear. Non-swelling liner and patented no-show design.

Soft Top Layer

Top Layer

Smooth and comfortable liner in swimsuit fabric.

4.3
Rated 4.3 out of 5 stars
Based on 30 reviews
Total 5 star reviews: 17 Total 4 star reviews: 9 Total 3 star reviews: 2 Total 2 star reviews: 0 Total 1 star reviews: 2
87%would recommend these products
ComfortRated 3.4 on a scale of 1 to 5
FitRated -0.4 on a scale of minus 2 to 2
EffectivenessRated 3.4 on a scale of 1 to 5
Ease of UseRated 3.0 on a scale of 1 to 5
30 reviews
  • Rated 5 out of 5 stars
    1 month ago
    Fits nicely

    The swim skirt fits nicely and is comfortable.

    Rose F.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 months ago
    Owner

    Love all things knix!

    Karen T.
    Verified Buyer
  • Rated 1 out of 5 stars
    3 months ago
    Swim skirt

    Not quite the fit I was looking for. I got a refund

    Rose C.
    Verified Buyer
  • Rated 4 out of 5 stars
    3 months ago
    nice coverage

    Suits the purpose of extra coverage when I have pool guests, but the overall style could be more "fun" and offered in more colours.

    Barb C.
    Verified Buyer
  • Rated 5 out of 5 stars
    4 months ago
    Great coverage with just the right fit!

    Haven’t yet worn this to the pool, but I can tell it’s going to be a favorite of mine this summer! Covers what I want covered, supports what I want supported, will go with lots of tops I already have.

    Jeannie F.
    Verified Buyer
  • Rated 4 out of 5 stars
    4 months ago
    Nice Essentials Skirt

    Loved this! Doubles as a cover up so I seldom had to carry extra when on a vacation. Looking to buy another!

    Dominique C.
    Verified Buyer
  • Rated 4 out of 5 stars
    5 months ago
    4 Stars

    Great. Sizing was as expected. Good quality materials and sewing. Thank you!

    Robin
    Verified Buyer
  • Rated 5 out of 5 stars
    7 months ago
    Exactly what I needed!

    I wish there was a little tummy control, but very happy with it! The skirt is a great length and there is good bum coverage.

    Veronica R.
    Verified Buyer
  • Rated 3 out of 5 stars
    7 months ago
    Nice Swim Skirt But

    As my previous review of this product stated that the skirt seemed way to long for me, so i ordered a medium in place of the large. This was very easy to do and the new one came so fast. I love the skirt of this product, nice fit and great material. I am disappointed with the under liner, just not made right. I would prefer that it go down further on your behind, it also felt loose to me. I have the perfect solution, I am thinking maybe I can cut the liner out and wear my Leakproof Swim Short under the skirt. This would give me way more confidence as I feel if the skirt blew up I would be self conscious. Maybe you could start making skirts to just pull over the Bottoms. I would recommend this product but the liner needs to be made better.

    Diana G.
    Verified Buyer
  • Rated 5 out of 5 stars
    7 months ago
    Nice swim skirt

    Very nice well made skirt but fits large. I did reorder to get a medium in lace of the large. Good coverage, the large was to long on me but the medium is the proper length for me. I am sn older woman and short. If your thinking about ordering it don't order a size up.

    Diana G.
    Verified Buyer
  • Rated 4 out of 5 stars
    10 months ago
    Nice fit, cute swim skirt

    I haven't used it as a period swimwear piece yet (haven't needed to) but it is a nice swim skirt, great length, fit and colour. I only gave it a 4 because I cannot comment on the "leakproof" part just yet!

    Lisa D.
    Verified Buyer
  • Rated 4 out of 5 stars
    11 months ago
    Pretty good

    Only thing I wish it would be a bit higher rise

    Cailin
    Verified Buyer