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Home / High Rise Underwear / Leakproof Cotton High Rise
Best Seller

Leakproof Cotton High Rise

High-waisted period underwear in a soft cotton blend.
$29.00 CAD

Mix & Match: 3+ for $25 each
Leslie has 49” hips, wearing KNIX XXL | Black

Leslie has 49” hips, wearing KNIX XXL

| Black
Leslie has 49” hips, wearing KNIX XXL | Black

Leslie has 49” hips, wearing KNIX XXL

Leslie has 49” hips, wearing KNIX XXL | Black

Leslie has 49” hips, wearing KNIX XXL

| General

Leslie has 49” hips, wearing KNIX XXL

Absorbency: Moderate
Drop
Drop
Drop
Drop
Drop

Color: Black

Size:

True to Size

•

Size:

Size and Fit Guide

Leakproof Underwear is Sales Tax Free in Canada*
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 Exchanges 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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Comfort-First Fit

High-rise silhouette sits above the natural waist with full coverage through the stomach, hip, and bum.

Worry-Free Protection

Innovative floating gusset provides leak protection from every angle.

Moderate Absorbency

Absorbs about 3 super tampons worth of liquid—great for moderate flow days, light bladder leaks, and sweat.

Cozy Cotton-Blend

Soft cotton spandex feels luxurious against your skin.

Easy to Wash

Machine washable just like regular underwear.

Zoom

Leslie has 49” hips, wearing KNIX XXL | Black
| Black
Leslie has 49” hips, wearing KNIX XXL | Black
Leslie has 49” hips, wearing KNIX XXL | Black
| 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
    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
FRESH FIX TECHNOLOGY®

Built-in protection that feels like nothing at all.

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.

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4.5
Rated 4.5 out of 5 stars
Based on 462 reviews
Total 5 star reviews: 347 Total 4 star reviews: 53 Total 3 star reviews: 24 Total 2 star reviews: 19 Total 1 star reviews: 19
88%would recommend these products
ComfortRated 4.6 on a scale of 1 to 5
EffectivenessRated 4.5 on a scale of 1 to 5
FitRated 0.1 on a scale of minus 2 to 2
Ease of UseRated 4.6 on a scale of 1 to 5
Write a Review (Opens in a new window)
462 reviews
  • Rated 5 out of 5 stars
    3 minutes ago
    Best Ever

    I can only wear cotton underwear, so these are a blessing!

    Linda M.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    Yesterday
    Great fit

    These cotton panties feel great. I really like this fabric. They are also a great fit.

    Sandra M.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 days ago
    The best!

    So comfortable and soft. Keeps me dry

    Barbara B.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 days ago
    Leakproof cotton high rise medium

    I wish I could get this in heavy absorbency but the medium usually does the job just fine.

    Laurie P.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    4 days ago
    Leakproof briefs

    Best undies I ever had.

    Marilyn H.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    5 days ago
    Obsessed

    These Leakproof Cotton High-Rise Underwear are everything I could’ve hoped for and more! I don’t use tampons, and pads had become super uncomfortable and irritating for me. As I’ve gotten older, the materials in pads started making me itchy, so I’d often just wear regular underwear to give myself a break. I finally decided to try these, and wow.. I WILL NEVER GO BACK! I can’t wait to order more. From the bottom of my heart, thank you so much!

    Breana M.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    5 days ago
    These are amazing

    I use these for bladder leaks. I put it to the test today. Intense coughing jag and my bladder was just starting to tell me I needed to go. Leaks contained, stayed feeling dry. Im a plus sized gal, wear size 4XL. Love, love, love the cotton especially for summer. I have not had any issues with the undies retaining odor after washing as one reviewer said and I do not find these bulky either. I have several styles of Knix and I love them all. They are worth their weight in gold.

    Becky
    Verified Reviewer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 week ago
    Satisfaite

    Très confortable et efficace pour les fuites.

    Hélène T.
    Verified Buyer
    Was this helpful?
  • Rated 1 out of 5 stars
    1 week ago
    Too full at back

    Too bulky at back. Will need to return. Disappointed. Cut is not for me.

    Eileen H.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 week ago
    Perfect

    Great fit!

    Dani R.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 week ago
    Great feel and comfort but limited color options

    I love the comfort and feel of these underwear and love the protection they provide. I only wish they had more color options available.

    Kathleen S.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 week ago
    Cotton and comfortable!

    I am all about cotton! I was so glad to find cotton leakproof undies! I found another brand that was so uncomfortable (like a diaper) . Thank goodness I found the Knix highrise cotton—so so comfortable. They are as comfortable as my most comfortable pair of regular undies!

    Fiona B.
    Verified Buyer
    Was this helpful?