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Color: Black
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Color: Black

Size:

Size:

Size and Fit Guide

Mix & Match: 3+ for $20 each
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LeakStrong™ Leakproof Short

$90.00 CAD

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High-rise fit

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Medium impact

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Absorbs about 2.5 super tampons

Cassaerea has 42

Cassaerea has 42" hips and wears a Knix size L

| Titanium
Cassaerea has 42

Cassaerea has 42" hips and wears a Knix size L

Cassaerea has 42

Cassaerea has 42" hips and wears a Knix size L

Cassaerea has 42

Cassaerea has 42" hips and wears a Knix size L

Cassaerea has 42" hips and wears a Knix size L

Color: Titanium 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 90 Points

Functional Style

High-rise shorts with an 8" inseam and an extra-wide, no-slip supportive waistband that defines your natural shape. It also features side pockets for sneaky storage.

Moderate Absorbency

Our FitKnix™ technology and quick-dry fabric with a built-in leakproof liner absorb about 2.5 super tampons worth of liquid.

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Cassaerea has 42
| Titanium
Cassaerea has 42
Cassaerea has 42
Cassaerea has 42

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
FRESH FIX TECHNOLOGY®

Built-in protection that feels like nothing at all.

Leakproof liner absorbs about 2-3 super tampons worth of liquid.

Soft Top Layer

Soft Top Layer

Gently wicks away moisture while keeping you feeling fresh and odor-free.

4.2
Rated 4.2 out of 5 stars
Based on 121 reviews
Total 5 star reviews: 76 Total 4 star reviews: 16 Total 3 star reviews: 11 Total 2 star reviews: 9 Total 1 star reviews: 9
79%would recommend these products
121 reviews
  • Rated 2 out of 5 stars
    1 month ago
    Don't stay put

    When I tried them on in the store they seemed to fit well but trying to play sports in them they don't stay put. Constantly fidgeting/adjusting them.

    Caroline C.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    5 Stars

    Good quality. Haven't usded it yet, so I can not speak about the absorvancy, but it looks pretty well made, and I am happy with this purchase. My daughter is using it for sports and she liked how they felt when she trued them on. Price is high, though, even though I got them on sale, but I think it is worth it. .

    Idana
    Verified Buyer
  • Rated 4 out of 5 stars
    3 months ago
    Very comfy but a little big on the waist

    I love these, there very breathable and comfy and the color is very pretty. I bought the XL that fits perfectly around my hips and legs with no circulation cutoff but the waist is a tad too loose. It would be awesome if the waist was tighter as I am always pulling them up. For reference I am 47 inch at the hips and 38 inch at the waist which are basically the measurements for an XL so maybe they run a tad too big but the hips and below fit perfectly so I am torn.

    Kraken
    Verified Buyer
  • Rated 2 out of 5 stars
    3 months ago
    Too tight and thick

    Very tight and thick

    Irina G.
    Verified Buyer
  • Rated 5 out of 5 stars
    4 months ago
    Knix LeakproofUnderwear

    Top notch, just ordered 3 more.

    Donna S.
    Verified Buyer
  • Rated 5 out of 5 stars
    4 months ago
    Pickleball perfect

    I play much better when I am comfortable in these shorts.

    Diana P.
    Verified Buyer
  • Rated 5 out of 5 stars
    5 months ago
    Shorts

    Love these

    Linda S.
    Verified Buyer
  • Rated 2 out of 5 stars
    6 months ago
    2 Stars

    Waist band will not stay smooth. Keep folding over

    Gursharn
    Verified Buyer
  • Rated 3 out of 5 stars
    6 months ago
    Product 3*, customer service 10+*

    I was disappointed. There's is very little stretch in the waist line....I couldn't get them on over my hips.

    Customer service went above and beyond, to make sure I was happy.

    JUDITH V.
    Verified Buyer
  • Rated 1 out of 5 stars
    7 months ago
    1 Star

    The medium would fit a child

    Louise
    Verified Buyer
  • Rated 4 out of 5 stars
    8 months ago
    Nice material, tight fit

    I like them and will save for period workouts. They definitely made me feel safe that I wouldn’t have leaks! The only downside is they are a little thicker than I like. If you’re looking for tummy control, these are great!

    Catherine R.
    Verified Buyer
  • Rated 5 out of 5 stars
    8 months ago
    Well Made Shorts

    The shorts are comfy and long. The pocket on the side is very well placed and useful to carry your phone. The material is strong. The shorts are well made and keep your thighs from chafing.The leakproof band is useful for leaks!

    Angela S.
    Verified Buyer