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Home / High Rise Underwear / SuperPlus Leakproof® No-Show High Rise
Best Seller

SuperPlus Leakproof® No-Show High Rise

$39.00 CAD

Mix, Match & Save: 3+ for $33 each
Checkmark

Absorbs 7-11 super tampons

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Front-to-back liner

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Bonded seams prevent leaks

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Machine washable

Ashley has 39” hips and wears KNIX S | Twilight Navy

Ashley has 39” hips and wears KNIX S

| Twilight Navy
Ashley has 39” hips and wears KNIX S | Twilight Navy

Ashley has 39” hips and wears KNIX S

Ashley has 39” hips and wears KNIX S | Twilight Navy

Ashley has 39” hips and wears KNIX S

| General

Ashley has 39” hips and wears KNIX S

Absorbency: Ultra

Ultra
about 7-11 super tampons
Essential
No Absorbency
Moderate
about 2-4 super tampons
Light
about 1-3 regular tampons
Heavy
about 4-7 super tampons

Color: Twilight Navy

Size:

True to Size

•

Size:

Size and Fit Guide

Leakproof Underwear is Sales Tax Free in Canada*

Build Your 3-Pack

Ashley has 39” hips and wears KNIX S | Twilight Navy

SuperPlus Leakproof® No-Show High Rise

Color: Twilight Navy

Size:

Size:

Ashley has 39” hips and wears KNIX S | Twilight Navy

SuperPlus Leakproof® No-Show High Rise

Color: Twilight Navy

Size:

Size:

Ashley has 39” hips and wears KNIX S | Twilight Navy

SuperPlus Leakproof® No-Show High Rise

Color: Twilight Navy

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 39 Points

Product Description

Total peace of mind with a supportive, no-show fit. Whether you are managing an ultra-heavy period, postpartum recovery, or intense bladder leaks, the SuperPlus No-Show High Rise is engineered to keep you dry. The moisture-wicking and anti-odor fabric pulls liquid away from the body instantly, offering a sustainable, eco-friendly alternative to bulky pads. Designed for a "barely there" feel, these high-rise panties stay in place without digging or rolling, providing all-day comfort for even the most active schedules.

Comfort-First Fit

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

Ultimate Leakproof Protection

Our longest, most absorbent liner ever—front-to-back coverage without the bulk.

Day & Night Comfort

Buttery-soft stretch fabric moves with you, while bonded seams keep leaks contained and create a smooth, seamless look under clothing.

Machine Washable

Wash just like your regular underwear—easy, everyday care.

Zoom

Ashley has 39” hips and wears KNIX S | Twilight Navy
| Twilight Navy
Ashley has 39” hips and wears KNIX S | Twilight Navy
Ashley has 39” 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

Our Best-Selling Underwear

Shop All

Super Leakproof® Dream Boxer™

$48.00 CAD
2 for $80, Save $16

Color: Blue Stripe

Super Leakproof® Dream Short™

$48.00 CAD
2 for $80, Save $16

Color: Black

+2

Leakproof UltraThin No-Show High Rise

$32.00 CAD
Mix, Match & Save: 3+ for $25 each

Color: Black with White Polka Dot Limited Edition

+3

Leakproof UltraThin No-Show Bikini

$27.00 CAD
Mix, Match & Save: 3+ for $25 each

Color: Warm Sand

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Leakproof UltraThin No-Show French Cut

$27.00 CAD
Mix, Match & Save: 3+ for $25 each

Color: Black

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SuperPlus Leakproof® No-Show High Rise

$39.00 CAD
Mix, Match & Save: 3+ for $33 each

Color: Twilight Navy

Super Leakproof® Dream Team 2-Pack

From 
$80.00 CAD
$96.00
Save $16

The Full Cycle Kit - Bikini

From 
$125.00 CAD
$159.00
Save $34
PATENTED LEAKPROOF TECHNOLOGY

Our longest, most absorbent liner—ever.

Our original Fresh Fix Technology® features a built-in absorbent liner that soaks up about 7–11 super tampons’ worth of liquid—so you stay fresh, comfortable, and in control.

Soft Top Layer

Soft Top Layer

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

How to wash

Knix underwear is 100% reusable and machine washable, just like your regular undies. 

Rinse
  • Rinse

    • Not required. But for best results, you can rinse your leakproof with cold water in the tub or sink before washing.

    Wash
  • Wash

    • Machine wash on a cold, gentle cycle with mild detergent.

    Dry
  • Dry

    • For their longest life, air drying is best. Hang or lay flat to dry.

    Avoid
  • Avoid

    • Fabric softeners, bleach, ironing, or heat from the dryer.

    4.2
    Rated 4.2 out of 5 stars
    Based on 151 reviews
    Total 5 star reviews: 101 Total 4 star reviews: 12 Total 3 star reviews: 13 Total 2 star reviews: 12 Total 1 star reviews: 13
    75%would recommend this product
    ComfortRated 4.2 on a scale of 1 to 5
    EffectivenessRated 4.2 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)
    151 reviews
    • Rated 5 out of 5 stars
      4 minutes ago
      Amazing

      Love them they work 🤩

      Stephanie S.
      Verified Buyer
      Was this helpful?
    • Rated 5 out of 5 stars
      8 hours ago
      Comfy

      Love the high rises for bed time and every day comfort.

      Steph K.
      Verified Buyer
      Was this helpful?
    • Rated 5 out of 5 stars
      23 hours ago
      Love theses underwear.

      Love these new high rise brief.

      Donna K.
      Verified Buyer
      Was this helpful?
    • Rated 5 out of 5 stars
      3 days ago
      Happy

      Very nice product and fits well.

      Mary A. S.
      Verified Buyer
      Was this helpful?
    • Rated 5 out of 5 stars
      5 days ago
      Super leak proof

      These are super leak proof and are high absorbency. I bought the wrong style from my knee. I don’t need this heavy of leak proof protection, but they are leak proof.

      Cecilia R.
      Verified Buyer
      Was this helpful?
    • Rated 5 out of 5 stars
      5 days ago
      Super plus high rise

      I am trying something other than the cotton leak proof underwear and so far, so good. I wasn't sure I'd like the feel of the material but it doesn't bother me. I still prefer the cotton, though.

      Marlena M.
      Verified Buyer
      Was this helpful?
    • Rated 5 out of 5 stars
      6 days ago
      leak

      i like them a lot am 81 and they help me a lot very happy with them

      patricia r.
      Verified Buyer
      Was this helpful?
    • Rated 5 out of 5 stars
      1 week ago
      long-time customer

      I love your product and wear only these. I am over 70 and have had bladder surgery, but it does not stop all leaks.

      Kimary C.
      Verified Buyer
      Was this helpful?
    • Rated 5 out of 5 stars
      1 week ago
      5 Stars

      Amazing

      Aabida
      Was this helpful?
    • Rated 5 out of 5 stars
      1 week ago
      Made me a believer

      I’m in the unpredictable stages of perimenopause and the extra protection and comfortable fit are just what I needed.

      Arminnie G.
      Verified Buyer
      Was this helpful?
    • Rated 5 out of 5 stars
      1 week ago
      A Staple

      These are my regular purchase. Love them.

      Deborah P.
      Verified Buyer
      Was this helpful?
    • Rated 5 out of 5 stars
      2 weeks ago
      Underwear

      Felt a little tight when I first put them on but were very comfortable as I wore them.

      MaryAnn B.
      Verified Buyer
      Was this helpful?

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