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Hot Deal 🔥

Ultra Leakproof Zones+® High Rise

$25.00 CAD

$39.00

2 for $40
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Max absorbency level

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Absorbs about 9 super tampons

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Invisible under clothes

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Extra long liner

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Machine washable

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

Elyse is wearing KNIX L  | Black

Elyse is wearing KNIX L

Elyse is wearing KNIX L  | Black

Elyse is wearing KNIX L

Designed with extra long protective coverage in the front & back | General

Designed with extra long protective coverage in the front & back

Made with soft, stretchy fabric that’s quick dry for your comfort | General

Made with soft, stretchy fabric that’s quick dry for your comfort

Washes just like regular underwear | General

Washes just like regular underwear

Leslie has 49” hips, wearing KNIX XXL

Color: Black

Size:

True to Size

Size:

Size and Fit Guide

Leakproof Underwear is Sales Tax Free in Canada*
Get FREE Express Shipping on all orders $125+

Shipping

HOLIDAY SHIPPING

Give the gift of Knix! To receive your order by Dec 24th, please order by the following dates.

Toronto, Ottawa, Montreal, Winnipeg, Regina, Calgary, Edmonton, Vancouver
Standard & Expedited: Monday, December 22

Urban Centres (excluding the above)
Standard: Wednesday, December 17
Express: Sunday, December 21

Rest of Canada
Standard: Sun, December 14*
Express: Thu, December 18*
*YK, NWT, NT, NL, and remote areas across Canada.

For locations serviced solely by Canada Post, please allow at least 5 additional days due to rotating strikes. This applies to P.O Box and RR addresses.

To avoid any additional delays during the rotating strikes, we will use alternate carriers when possible.

Please note: Weather conditions and carrier issues may cause delays. Delivery dates are not guaranteed.

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.

Year End Sale Return Policy

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 25 Points

"If you have a heavier flow, the Ultra Leakproof Zones+ High Rise is one of our favorite styles for day one of your bleed."

- StyleCaster

Comfort-First Fit

High-rise silhouette sits at your natural waist and offers medium coverage for the bum, combining comfort with a flattering fit.

Worry-Free Protection

Features an extra-long liner that runs high in the front and up the back. Patented 360 LeakSeal™ technology provides leakproof protection at every edge.

Ultra Absorbency

Absorbs 9 super tampons worth of liquid—great for heavy flow days, overnight protection, and light bladder leaks.

No-Show Style

Made from our signature buttery-soft PerformaStretch® fabric, it appears invisible under clothing.

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
Elyse is wearing KNIX L  | Black
Elyse is wearing KNIX L  | Black
Designed with extra long protective coverage in the front & back | General
Made with soft, stretchy fabric that’s quick dry for your comfort | General
Washes just like regular underwear | 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 7-9 super tampons worth of liquid.

Soft Top Layer

Soft Top Layer

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

4.0
Rated 4.0 out of 5 stars
Based on 1,279 reviews
Total 5 star reviews: 764 Total 4 star reviews: 162 Total 3 star reviews: 125 Total 2 star reviews: 85 Total 1 star reviews: 143
76%would recommend these products
ComfortRated 4.1 on a scale of 1 to 5
EffectivenessRated 4.0 on a scale of 1 to 5
FitRated 0.1 on a scale of minus 2 to 2
Ease of UseRated 4.4 on a scale of 1 to 5
1,279 reviews
  • Rated 3 out of 5 stars
    3 minutes ago
    Heavenly

    Love Knix undies so much!! This is good all day comfort for me… no pads.. no leaks.. just perfectly comfortable underwear. Have several styles & love each one. Wear them daily… thank you for such excellent undies!! Happy Holidaysfrom Florida🩷🩵🦩

    Randi C.
    Verified Buyer
  • Rated 5 out of 5 stars
    30 minutes ago
    Love them

    Love the fit and the protection they give.

    Jane R.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 hour ago
    Great coverage!

    These undies provide Great coverage and the comfort i need knowing i won’t have any break through!!! Love the way the feel on!

    Jennifer S.
    Verified Buyer
  • Rated 5 out of 5 stars
    15 hours ago
    Great product

    I bought these for my mom, although they’re not 100% for her they have helped her tremendously

    Bridget I.
    Verified Buyer
  • Rated 4 out of 5 stars
    16 hours ago
    Light leak-proof high rise

    It's too new to come to any conclusions

    Susan R. M.
    Verified Buyer
  • Rated 5 out of 5 stars
    17 hours ago
    Love these!

    I like that these, pretty comfortable and I don’t worry about leaks.

    Veronica R.
    Verified Buyer
  • Rated 5 out of 5 stars
    Yesterday
    Super absorbent and eco-friendly!

    Bought during Black Friday sale and have washed and used several times already. Compared to wearing maxi pads, these are definitely much better- maybe slightly thicker than ultra thin pads. Overall extremely satisfied- super comfy, excellent fit and keeps me dry and worry-free! I have either hand-washed or machine washed with other delicate items, using scent free, gentle detergent. Always hung dry as per instructions and didn’t notice any change in material or performance. Also, makes me feel better about doing my part to reduce landfill waste! Well worth the investment and will definitely stock up!!

    Dhaarmini R.
    Verified Buyer
  • Rated 3 out of 5 stars
    Yesterday
    Wrong thing sent

    As you can see , I ordered the ultimate leakproof and I got just the regular leak proof.

    Estherjean S.
    Verified Buyer
  • Rated 2 out of 5 stars
    Yesterday
    Not what they used to be

    I’ve been wearing Knix for years…and loved them, I recommend them to friends. Even though they were rather expensive, I’d watch for special offers and use my points. But the last two orders I received were more expensive with less rewards and worst of all the quality has gone WAY down. Fortunately Knix is no longer the only company offering period underwear (although I use them for incontinence) so I will be testing other brands. Sorry Knix….but I will be saying good bye

    Jojo P.
    Verified Reviewer
  • Rated 1 out of 5 stars
    Yesterday
    Did not like the bulkiness

    Did not like

    Sandra J.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 days ago
    Judy M.

    Works great.

    Judy M.
    Verified Buyer
  • Rated 1 out of 5 stars
    2 days ago
    Knix

    Nothing like my other Knix and they refused to refund or let me exchange. Very disappointed

    Betty S.
    Verified Buyer