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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
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Home / Shop All Teen / Teen Period Swim Board Shorts
KnixTeen

Teen Period Swim Board Shorts

$60.00 CAD

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Absorbs about 2.5 super tampons

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Mid-rise fit

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Full coverage style

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Premium UPF 50+ fabric

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Machine washable

| Poppy Petal
| Poppy Petal
| Poppy Petal
| Poppy Petal
| General

Absorbency: Moderate
Drop
Drop
Drop
Drop
Drop

Color: Poppy Petal 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.
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Swim in Style

A comfortable mid-rise swim shorts with a wide waistband and maximum bum coverage.

Worry-Free Protection

Discreet, built-in protection that absorbs about 2.5 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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| Poppy Petal
| Poppy Petal
| Poppy Petal
| Poppy Petal
| 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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4.5
Rated 4.5 out of 5 stars
Based on 36 reviews
Total 5 star reviews: 26 Total 4 star reviews: 4 Total 3 star reviews: 5 Total 2 star reviews: 0 Total 1 star reviews: 1
86%would recommend these products
ComfortRated 4.8 on a scale of 1 to 5
FitRated 0.0 on a scale of minus 2 to 2
EffectivenessRated 4.5 on a scale of 1 to 5
Write a Review (Opens in a new window)
36 reviews
  • Rated 5 out of 5 stars
    2 weeks ago
    Everything I was promised!

    These shorts are SUPER comfortable and secure. I got them in Wave Pool and the color matches its online portrayal beautifully:) Can be worn with any assortment of swim tops or honestly as normal shorts as well. As someone who often feels insecure in swimsuits, these are a stylish relief to have in my wardrobe!!

    Clara L.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    Perfect for water activities

    Perfect for being active outside and doing water activities. Fit well, even on an adult. Slightly lower rise.

    Robyn W.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    My teen loves these!

    We’ve bought these every year as she’s grown. She loves them and feels confident to swim every day of the month. I highly recommend!!

    Jennifer H.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 months ago
    Exactly what I needed

    I am almost 30 and was looking for something looser fitting for swimming so based on other reviews I figured I would try these and I was pleasantly surprised! I sometimes even just wear them around the house because they are comfy. Might be buying other colours. I am usually a medium but sized up to a large and they fit great

    Kara
    Verified Buyer
    Was this helpful?
  • Rated 3 out of 5 stars
    11 months ago
    Baggy

    The fit on these are very loose and baggy. My daughter is reluctant to wear them. Also, they’re still only good for medium-light days. They’re big enough that it would be nice to have heavy flow protection.

    Cory W.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    11 months ago
    Perfect

    Seeing as these are not offered in the womens line I took a chance an ordered. I'm 46 yrs old and wanted something more then a bikini bottom or cycling short for aquafit. I normally wear between a med/large and played it safe and ordered the xl. Now they do fit a little big but thankfully can tighten with the waist string and I only wear these on my light days cause I'm a little too self conscious on heavier days. But I absolutely love these shorts and wish they were around when I was a teen.

    Tanya
    Verified Buyer
    Was this helpful?
  • Rated 3 out of 5 stars
    11 months ago
    These look great.... and adults want them too!

    Would love to see these offered in adult sizes. And also in a longer inseam length. Many of us feel more comfortable with something less revealing around our bodies when we're at the beach. For period swim, I'd love to see a form fitting liner and a baggier board short outer layer. Thanks!

    Meg
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 year ago
    Teen swim shorts review

    My dtr really enjoys her swim shorts. They give her confidence when swimming and have been very helpful this summer!

    Breanne D. J.
    Verified Buyer
    Was this helpful?
  • Rated 3 out of 5 stars
    1 year ago
    3 Stars

    Wish they were slightly higher rise on the waist

    Alexandra
    Verified Buyer
    Was this helpful?
  • Rated 4 out of 5 stars
    1 year ago
    Board swim shorts

    These board shorts are a great product, however, the are a bit wide for my slender teen. We tried two different sizes but she didn’t like the fit of either pair. Costumer service was extremely helpful!

    Desiree J.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 year ago
    Swim board Shorts

    My daughter loves there and they fit pretty good. She didn't seem to leak. Hard to gauge what size to get in these

    Jennifer J.
    Verified Buyer
    Was this helpful?
  • Rated 1 out of 5 stars
    1 year ago
    Sizing doesn't match with measurements

    Measured my daughter's waist and hips to get the size but unfortunately it was very big for her that it fit me. Although the short itself is of good quality but the liner (panty) could use a wider absorption design as per my daughter.

    L'NoraH
    Verified Buyer
    Was this helpful?