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Best Seller

Leakproof Swim Short

$65.00 CAD

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Absorbs about 2 super tampons

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Mid-rise fit

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Full coverage

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Premium UPF 50+ fabric

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Machine washable

| Black
| Black
| General
| Black
| Black

Color: Black

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

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.

Rewards Members Earn 65 Points

"These bestselling leakproof swim shorts fit the bill, providing mid-rise, full-butt coverage."

- HuffPost

Swim in Style

A comfortable mid-rise bikini bottom with a 5" inseam for full bum coverage.

Shine Bright Poolside

Limited edition shimmer fabric that catches the light just right.

Worry-Free Protection

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

Sun-Smart Protection

UPF 50+ fabric protects your skin while you soak up the sun.

Zoom

| Black
| Black
| General
| Black
| Black

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
    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
  • light period days
  • sweat
  • 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 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
  • extra heavy period days
  • overnight protection
  • light bladder leaks
  • 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
4.5
Rated 4.5 out of 5 stars
Based on 201 reviews
Total 5 star reviews: 146 Total 4 star reviews: 31 Total 3 star reviews: 11 Total 2 star reviews: 8 Total 1 star reviews: 5
91%would recommend these products
ComfortRated 4.4 on a scale of 1 to 5
FitRated -0.2 on a scale of minus 2 to 2
EffectivenessRated 4.5 on a scale of 1 to 5
Ease of UseRated 4.5 on a scale of 1 to 5
201 reviews
  • Rated 5 out of 5 stars
    5 days ago
    5 Stars

    Pwrfect for beach days as well as impromptu swims !!

    Sarah
  • Rated 5 out of 5 stars
    1 month ago
    Leakproof swim shorts

    The new underwear is great. I love them!

    Pat D.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    5 Stars

    The swim shorts fit really well. I cant wait to try them out!

    Candace
  • Rated 5 out of 5 stars
    1 month ago
    Best swim protection while on period

    This is our second pair I purchased for my daughter. It gives her confidence and let's her to continue to enjoy swimming.

    Lynn Z.
    Verified Buyer
  • Rated 5 out of 5 stars
    4 months ago
    comfortable

    Nice fitting

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

    Super comfortable, good fit.

    Luna
  • Rated 5 out of 5 stars
    5 months ago
    So in love

    Absolutely love these they are so comfortable and I don’t have to worry about dribbles or worse on the walk to the pool or back.

    Thank you Knix

    Krista W.
    Verified Buyer
  • Rated 5 out of 5 stars
    5 months ago
    Leakproof swim short

    Able to put on fairly easily

    Covers well for aquatic classes

    Feels comfy

    VALERIE S.
    Verified Buyer
  • Rated 5 out of 5 stars
    5 months ago
    Great fit, super function

    These swim shorts will keep you feeling snug, secure and stylish by the water. Even on your heaviest days, these will get you through to that post-pool shower time. Highly recommend.

    Tanya G.
    Verified Buyer
  • Rated 5 out of 5 stars
    5 months ago
    Very flattering!

    Love the cut of these. The legs stay put (no rolling up) and the waistline is flattering (no rolling down). Very comfortable overall. No leaks either, of course!

    Danielle K.
    Verified Buyer
  • Rated 5 out of 5 stars
    5 months ago
    Great product

    Product was exactly what I was looking for. They are comfortable and wear well

    Lisa I.
    Verified Buyer
  • Rated 5 out of 5 stars
    6 months ago
    5 Stars

    Very comfortable and flattering!

    Danielle
    Verified Buyer