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| Black
Light Leakproof No-Show Bikini
$25.00 CAD

Color: Black
Best Seller

Color: Black

Size:

Size:

Size and Fit Guide

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

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Leakproof UltraThin No-Show High Rise

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Super Leakproof® Dream Short

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Home / Shop All Teen / Teen Period Swim Sport One-Piece
Best Seller

Teen Period Swim Sport One-Piece

$99.00 CAD

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Absorbs about 2 super tampons

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Medium coverage

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Sporty scoop neckline

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Premium UPF 50+ fabric

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Machine washable

| Marina
| Marina
| Marina
| Marina
| General

Absorbency: Moderate
Drop
Drop
Drop
Drop
Drop

Color: Marina Limited Edition

Size:

True to Size

•

Size:

Size and Fit Guide

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 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.

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 99 Points

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Teen Super Leakproof® Sleepover Short

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Swim in Style

A sporty one-piece style featuring removable cups and an open racerback for added mobility.

Worry-Free Protection

Discreet, built-in protection that absorbs about 2 super tampons worth.

Stay Sun-Safe

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

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| Marina
| Marina
| Marina
| Marina
| 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.

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WingWoman Contour Bra

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Leakproof UltraThin No-Show Bikini

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Light Leakproof No-Show High Rise

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4.6
Rated 4.6 out of 5 stars
Based on 218 reviews
Total 5 star reviews: 170 Total 4 star reviews: 26 Total 3 star reviews: 11 Total 2 star reviews: 3 Total 1 star reviews: 8
90%would recommend these products
ComfortRated 4.6 on a scale of 1 to 5
FitRated -0.1 on a scale of minus 2 to 2
EffectivenessRated 4.5 on a scale of 1 to 5
Ease of UseRated 4.6 on a scale of 1 to 5
Write a Review (Opens in a new window)
218 reviews
  • Rated 5 out of 5 stars
    12 minutes ago
    Great for pre-teen to feel secure

    Ordered several of these for my daughter (11) for swim class and she loves them! they feel great and no leaks! (actually kinda amazing). I'll order more when she needs them, love them!

    Elaina A.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 hour ago
    Parfait

    Il est tout simplement parfait

    Chantal J.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 days ago
    Swimsuit

    Excellent quality and true to size.

    Lida I.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    6 days ago
    M.

    Nice quality. Didn’t try yet but the size match perfectly. Thank you for your business.

    Cosmin V.
    Verified Buyer
    Was this helpful?
  • Rated 1 out of 5 stars
    1 week ago
    Not good

    Period came right through ! No what I expected at all !

    Stephanie F.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 week ago
    Pool Reassurance!

    One of the biggest concerns my daughter had with joining the HS swim team was how to handle those certain tricky days of the month. This suit has relieved all those concerns! Whether or not she uses other protection methods at the same time, this suit helps relieve those worries, and allows her to swim with confidence. Her only frustration is that it isn't available in other colors, so she can be close to team colors, but even she says that's a minor point. :-)

    Catherine W.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 weeks ago
    Worked Beautifully!!!

    Bought this suit (plus your boyshort and board shorts) for summer camp for my daughter. Worked perfectly!! As expected, she got her period 1/2 way through camp. She said she spent every day in the lake without a worry! Thank you!! Before these, she would have opted out of water activities at camp.

    Lori S.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 weeks ago
    perfect!

    My daughter had the suit purchased for when swam at summer camp! very comfortable and also received a lot of complements

    Anne K.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    4 weeks ago
    Perfect for my teen daughter

    Very flattering and well made. She liked wearing all summer long not just on period weeks. It gave her freedom and confidence to swim!

    R P.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    4 weeks ago
    Swimsuit

    My daughter loves this suit and the confidence it gives her. I wish it had a little more coverage on the bottom.

    Courtney C.
    Verified Buyer
    Was this helpful?
  • Rated 1 out of 5 stars
    1 month ago
    Bathing suit leaking

    Bathing suit was leaking when standing and not in water.

    Shereen G.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    Great fit

    My daughter loves these, she even wears them when she is no on her period.

    Briony C.
    Verified Buyer
    Was this helpful?