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Super Leakproof® No-Show High Rise

$36.00 CAD

Mix, Match & Save: 3+ for $25 each
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Now absorbs about 6 super tampons

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2" added to gusset for extra protection

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Invisible under clothes

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Machine washable

Megan has 36.5” hips and wears KNIX S | Twilight Navy

Megan has 36.5” hips and wears KNIX S

| Twilight Navy
Megan has 36.5” hips and wears KNIX S | Twilight Navy

Megan has 36.5” hips and wears KNIX S

Megan has 36.5” hips and wears KNIX S | Twilight Navy

Megan has 36.5” hips and wears KNIX S

  | General

Megan has 36.5” hips and wears KNIX S

Color: Twilight Navy Limited Edition

Size:

True to Size

Size:

Size and Fit Guide

Leakproof Underwear is Sales Tax Free in Canada*

Build Your 3-Pack

Megan has 36.5” hips and wears KNIX S | Twilight Navy

Super Leakproof® No-Show High Rise

Color: Twilight Navy Limited Edition

Size:

Size:

Megan has 36.5” hips and wears KNIX S | Twilight Navy

Super Leakproof® No-Show High Rise

Color: Twilight Navy Limited Edition

Size:

Size:

Megan has 36.5” hips and wears KNIX S | Twilight Navy

Super Leakproof® No-Show High Rise

Color: Twilight Navy Limited Edition

Size:

Size:

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.

First Pair Risk Free for 30 Days

Leakproof Underwear, Risk Free

Returns & Exchanges

Leakproof Underwear, Risk Free
Trying leakproof underwear for the first time? Your first pair is completely risk free for 30 days. Wear them, wash them, and see how they work for your body. If they’re not right for you, we’ll refund your first pair. Prefer a different size or style? We also offer free exchanges.

How it works:

  • Risk free applies to leakproof underwear on your first order
  • Refund covers the item price (original shipping excluded)
  • Just email info@knix.com and we’ll take care of you

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 36 Points

"Knix actually devised a super thin nylon-Spandex pair which is virtually invisible under clothing."

- Business Insider

Product Description

Total security from morning to night. Upgrade your cycle with the Super Leakproof No-Show High Rise, engineered for those who prioritize extra coverage and comfort. The extended gusset provides 360-degree protection against leaks, making it an ideal choice for heavy days or postpartum recovery. Crafted from moisture-wicking, anti-odor fabric, it keeps you dry and fresh without the bulk of a pad. Ditch the disposables for this sustainable, high-performance period solution that flatters your curves and stays in place.

Comfort-First Fit

Sits at the natural waistline and provides medium bum coverage.

Worry-Free Protection

Patented leakproof technology delivers a barely-there feel, while bonded edges prevent side leaks.

Heavy Absorbency

Absorbs 6 Super tampons worth of liquid—perfect for heavy flow days, overnight protection, and light bladder leaks.

No More Panty Lines

Made from our signature buttery-soft fabric and designed to be invisible under clothes, including leggings.

Easy to Wash

Machine washable just like regular underwear.

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Megan has 36.5” hips and wears KNIX S | Twilight Navy
| Twilight Navy
Megan has 36.5” hips and wears KNIX S | Twilight Navy
Megan has 36.5” hips and wears KNIX S | Twilight Navy
  | General

How to Choose?

Essential

  • Days you don’t need leak protection. Everyday freshness and moisture wicking.
  • tsp
    0 tsp

Heavy

  • Extra peace of mind. For the first days of your cycle, light bladder leaks, or a full night's sleep without a leak.
  • 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

  • Daily freshness. For sweat, discharge, period spotting, or backup protection.
  • tsp
    about 1-3 tsp
  • pad
    about 1-3 pantyliners
  • tampon
    about 1-3 regular tampons
  • cup
    about 0.5 menstrual cups

Moderate

  • For mid-cycle flow, surprise cough or sneeze leaks, or a really sweaty spin class.
  • 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

  • Ultimate peace of mind. For the heaviest period days, light bladder leaks, unexpected postpartum flow, or overnight protection.
  • 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
PATENTED LEAKPROOF TECHNOLOGY

Built-in protection that feels like nothing at all

Our original Fresh Fix Technology® features a built-in absorbent liner absorbing about 3-6 super tampons worth of liquid so you feel fresh and in-control.

Soft Top Layer

Soft Top Layer

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

4.6
Rated 4.6 out of 5 stars
Based on 6,333 reviews
Total 5 star reviews: 5.1k Total 4 star reviews: 682 Total 3 star reviews: 253 Total 2 star reviews: 143 Total 1 star reviews: 201
92%would recommend these products
ComfortRated 4.7 on a scale of 1 to 5
EffectivenessRated 4.6 on a scale of 1 to 5
FitRated 0.2 on a scale of minus 2 to 2
Ease of UseRated 4.8 on a scale of 1 to 5
6,333 reviews
  • Rated 5 out of 5 stars
    4 minutes ago
    Amazing

    Makes life so much easier!

    Donna S.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 hour ago
    Great product

    I recently tried Knix leakproof underwear and I’m really impressed. They’re incredibly comfortable, soft, and feel just like regular underwear — not bulky or stiff like I expected. The fabric is breathable and stretchy, so they fit well and stay in place throughout the day.

    What I love most is the peace of mind they give. The leakproof layer works really well and helps prevent small leaks, which makes them great for periods, light bladder leaks, or postpartum recovery. I also appreciate that they’re reusable, which feels more sustainable than constantly using disposable products.

    After several washes they’ve held up really well and still feel high quality. Overall, they’re practical, comfortable, and make everyday life a little easier. I would definitely recommend them to anyone looking for reliable leakproof underwear.

    katie L.
    Verified Buyer
  • Rated 5 out of 5 stars
    Yesterday
    Excedllent Quality

    Super fit, high quality fabric and they are indeed "super" leakproof!!

    Catherine F.
    Verified Buyer
  • Rated 5 out of 5 stars
    6 days ago
    I love knix

    I have ordered several pairs of Knix leakproof underwear and will continue to purchase. Love the silky soft material and the leakproof benefit is exceptional

    Janis A.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 week ago
    High Rise

    I found the seam a little rough the first time I wore a pair but fine now after wshing

    Helen B.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 weeks ago
    Worth it

    Very comfortable and provides all the protection during heavy days.

    Czarina F.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 weeks ago
    Wearability

    I just know this! Knix has saved me & any thoughts about costs.. just that a Thought.. I’ve had my 3 pair for 6 years.. they’ve Never worn out & just as comfortable as ever… NOW I need to get rid of the cheapies & get More! Don’t hesitate just get these!

    Susie C.
  • Rated 5 out of 5 stars
    2 weeks ago
    Consistently good

    Always fit well, are comfortable, provide confidence and I like the new pattern.

    Mona B.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 weeks ago
    Travel undies

    So far these undies feel comfortable and I’m looking forward to feeling confident when I’m travelling and touring.

    Tammy H.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    Love my knix

    Love all the Knix products but these might be my favorite

    Janis A.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    Good to have

    These underpants give great protection

    Ann D.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    High rise

    love them

    June T.
    Verified Buyer