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Home / High Rise Underwear / Ultra Leakproof Zones+® High Rise
New

Ultra Leakproof Zones+® High Rise

$39.00 CAD

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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

Alex has 36.5

Alex has 36.5" hips and wears a Knix size S

| Dark Teal
Alex has 36.5

Alex has 36.5" hips and wears a Knix size S

Alex has 36.5

Alex has 36.5" hips and wears a Knix size S

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

Alex has 36.5" hips and wears a Knix size S

Absorbency: Ultra
Drop
Drop
Drop
Drop
Drop

Color: Dark Teal Limited Edition

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

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.
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"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.

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Alex has 36.5
| Dark Teal
Alex has 36.5
Alex has 36.5
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.

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Super Leakproof® Dream Boxer

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4.0
Rated 4.0 out of 5 stars
Based on 1,306 reviews
Total 5 star reviews: 780 Total 4 star reviews: 166 Total 3 star reviews: 127 Total 2 star reviews: 86 Total 1 star reviews: 147
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
Write a Review (Opens in a new window)
1,306 reviews
  • Rated 5 out of 5 stars
    5 hours ago
    Ultra leak proof

    Love your underwear so comfortable

    Donna G.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    17 hours ago
    Bought more

    Bought 2 pairs for my mom for overnight light bladder leaks, she loves them so much I bought her 2 more - so now she has them in every colour.

    Sophie M.
    Verified Buyer
    Was this helpful?
  • Rated 3 out of 5 stars
    20 hours ago
    Seat rises up

    They ride up on me. Constantly adjusting all day

    Cindy A.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    Yesterday
    5 Stars

    Knix is a great creation!

    Jo
    Was this helpful?
  • Rated 5 out of 5 stars
    3 days ago
    My daughter loves them

    She is hard to surprise, so when she got two of these for Christmas , she was floored and very happy. She feels that they will work best at night at the end of her cycle when it’s not as heavy. She suffers from endometriosis but her surgery for it helped a lot. Here’s hoping these will work for a long time to ease her period anxiety at night.

    Sheri L.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    4 days ago
    So comfy!

    These are so comfy!!

    Lindsay A.
    Verified Buyer
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  • Rated 5 out of 5 stars
    4 days ago
    5 Stars

    comfortable underwear, good flow absorption and no odor

    Androulla
    Was this helpful?
  • Rated 5 out of 5 stars
    4 days ago
    Great product!

    These are so comfortable. I haven't had a real chance to check how much they hold but it appears they will be sufficient.

    CHRISTINE B.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    4 days ago
    Ultra Leakproof Zones Are THE BEST!!!!

    Love my new Knix. They are so comfortable and I haven’t had a leak since I’ve been wearing them. I would highly recommend them to anyone who has bladder leaks.

    Brenda G.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    4 days ago
    5 Stars

    Loved them, can be a bit longer on the front, about 1 inch for the pad.

    Simonne
    Was this helpful?
  • Rated 4 out of 5 stars
    5 days ago
    Pretty good

    They are a bit odd to me that the protection is all up the bum but doesn't go higher in the front. I feel like if I have a big period it's more likely to go upwards than towards my bum. Overall Knix is good quality and I will be using these post partum

    Kelle S.
    Verified Buyer
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  • Rated 3 out of 5 stars
    5 days ago
    Better design; however could use improvement.

    This is an upgrade from their older version, but it absolutely needs to have the gusset run all the way from front to back. It does not provide adequate coverage while sleeping and while it offers full coverage in the rear for back sleepers, it does not offer any additional coverage in the front for side/front sleepers. Very disappointing.

    MK
    Verified Buyer
    Was this helpful?