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SuperPlus Leakproof® No-Show High Rise

$39.00 USD

Buy 3+ Save 15%, Buy 5+ Save 20%

Absorbs 7-11 super tampons

Front-to-back liner

Bonded seams prevent leaks

Machine washable

Front view of model wearing the SuperPlus Leakproof® No-Show High Rise highlighting the coverage and smooth fit

Ashley has 39” hips and wears KNIX S

SuperPlus Leakproof® No-Show High Rise shown front-facing against a light gray background
Back view of model wearing the SuperPlus Leakproof® No-Show High Rise highlighting the coverage and smooth fit

Ashley has 39” hips and wears KNIX S

Full-body view of model wearing the SuperPlus Leakproof® No-Show High Rise highlighting the coverage and smooth fit

Ashley has 39” hips and wears KNIX S

On image text: Ultra-thin, front-to-back liner. Bonded edges prevent side leaks.

Ashley has 39” hips and wears KNIX S

Color: Warm Sand

Size:

True to Size

•

Size:

Size and Fit Guide

Build Your 3-Pack

Front view of model wearing the SuperPlus Leakproof® No-Show High Rise highlighting the coverage and smooth fit

SuperPlus Leakproof® No-Show High Rise

Color: Warm Sand

Size:

Size:

Front view of model wearing the SuperPlus Leakproof® No-Show High Rise highlighting the coverage and smooth fit

SuperPlus Leakproof® No-Show High Rise

Color: Warm Sand

Size:

Size:

Front view of model wearing the SuperPlus Leakproof® No-Show High Rise highlighting the coverage and smooth fit

SuperPlus Leakproof® No-Show High Rise

Color: Warm Sand

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. Once an order is placed, we cannot guarantee any address updates, order changes or cancellations. Orders placed on Friday after 1PM will not be shipped until the following Monday.


Split Shipments

Most orders will ship from a single warehouse. However, we occasionally ship from a combination of warehouse locations, so you may receive your order in multiple parts. If items from your order ship in separate packages, we’ll send you tracking information for each package when it becomes available.

Delivery Timelines

For the most up-to-date delivery time estimates, please refer to the shipping timeline at checkout. Delivery timelines do not include processing times. See above for details. All transit times are measured in business days which are Monday-Friday, excluding holidays.

Please note, all shipping timelines are estimates and are not guaranteed.

We are not able to ship to US territories (including Puerto Rico, U.S. Virgin Islands, Guam, Northern Mariana Islands and American Samoa) at this time.

First Pair Risk Free for 30 Days

Leakproof Underwear, Risk Free

Returns & Exchanges

Holiday Return Policy
Eligible items purchased online or in stores between November 2, 2026 and December 31, 2026 may be returned through January 29, 2027. All other purchases fall under our 30 day Returns Policy.

Standard Return Policy
New to leakproof?
Your first pair is risk free for 30 days. Wear them, wash them, and see how they work for your body. Not right for you? We'll refund the item price (original shipping excluded). Prefer a different size or style? We also offer free exchanges. Just email info@knix.com and we'll take care of you.

Purchased leakproof before? Within 30 days of delivery you can exchange for another size, style, or store credit. We're unable to provide refunds on underwear. If you ordered multiple pairs, please open, wash, and wear one pair only before initiating an exchange.

Still have questions? View 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 an 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 | Front view of model wearing the SuperPlus Leakproof® No-Show High Rise highlighting the coverage and smooth fit | Warm Sand
Ashley has 39” hips and wears KNIX S | Back view of model wearing the SuperPlus Leakproof® No-Show High Rise highlighting the coverage and smooth fit | Warm Sand
Ashley has 39” hips and wears KNIX S | Full-body view of model wearing the SuperPlus Leakproof® No-Show High Rise highlighting the coverage and smooth fit | Warm Sand

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

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

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

4.2
Rated 4.2 out of 5 stars
Based on 367 reviews
76%would recommend these products
FitRated 0.0 on a scale of minus 2 to 2
ComfortRated 4.2 on a scale of 1 to 5
EffectivenessRated 4.2 on a scale of 1 to 5
Keywords
Keywords
Rating
Ratings
Height
Height
How do you use your Leakproof?
How do you use your Leakproof?
Usual Pant Size
Usual Pant Size
367 reviews
  • Rated 2 out of 5 stars
    3 minutes ago
    Not. Absorbent

    Very little help with Incontinance. Don’t absorb much at all.

    TG
    Tammy G.
    Verified Buyer
    Reviewing
    SuperPlus Leakproof® No-Show High Rise
  • Rated 5 out of 5 stars
    Yesterday
    So pretty

    These are a wonderful full coverage fit without being too bulky. The print is so pretty and makes me feel beautiful even while I’m bloated and uncomfortable. I exchanged for 2 more pairs of this because other styles I tried were not a great fit for me, this was my first time ordering and the process to get products that worked for me was so easy and quick. I’m looking forward to future collabs because this one was 10/10

    AH
    Alison H.
    Verified Buyer
    Reviewing
    SuperPlus Leakproof® No-Show High Rise
  • Rated 3 out of 5 stars
    Yesterday
    Optomistic

    Comfy fit but did not prevent leakage from going through clothing after just a few hours.

    CL
    Cindy L. P.
    Verified Buyer
    Reviewing
    SuperPlus Leakproof® No-Show High Rise
  • Rated 3 out of 5 stars
    Yesterday
    Hoping to love them

    1. So slippery my jeans were sliding off.

    2. Didn’t dry after rinsing out - after hanging for three days.

    3. Hoping for a great travel assist.

    DK
    Dawn K.
    Verified Buyer
    Reviewing
    SuperPlus Leakproof® No-Show High Rise
  • Rated 4 out of 5 stars
    2 days ago
    Review

    Le « pad » est rigide et ne se moule pas très bien au corps mais quand même confortable et offre une très bonne couverture en cas de débordement

    ZR
    Zoe R.
    Verified Buyer
    Reviewing
    SuperPlus Leakproof® No-Show High Rise
  • Rated 5 out of 5 stars
    4 days ago
    Get these! Worth the price!

    These are by far the best period underwear I’ve ever worn. Haven’t leaked yet and are as comfortable as regular underwear of the same cut.

    AM
    Amanda M.
    Verified Buyer
    Reviewing
    SuperPlus Leakproof® No-Show High Rise
  • Rated 3 out of 5 stars
    5 days ago
    ok product but not really what they say. for the very high price

    this product. i feel runs small -- im not a large person( 155 lbs. ) ordered large - just fits - what do people that are heavier have to use. - super extra extra extra extra large - !!!!

    PLUS it barely will hold 4 oz of liquid -- so you still need to wear an absorbant pad !!inside this product =. which totally defeats the purpose --- would not recommend to anyone that has incontinence issues -- or urgencies. - cant make it to a washroom in time

    SC
    Sylvia C.
    Verified Buyer
    Reviewing
    SuperPlus Leakproof® No-Show High Rise
  • Rated 5 out of 5 stars
    5 days ago
    Knix never disappoints

    This us my second Knix order, a few tears apart, and their product has only improved over time. True to size and work as promised. Try them and you will be glad you dud.

    ED
    Elizabeth D.
    Verified Buyer
    Reviewing
    SuperPlus Leakproof® No-Show High Rise
  • Rated 5 out of 5 stars
    6 days ago
    Super Plus

    Love them they are so comfortable!! So nice not to wear pads

    SS
    Sharon S.
    Verified Buyer
    Reviewing
    SuperPlus Leakproof® No-Show High Rise
  • Rated 1 out of 5 stars
    1 week ago
    No elastic in legs

    These run very large and have no elastic in the leg holes. They just hang there.

    BC
    Brenda C.
    Verified Buyer
    Reviewing
    SuperPlus Leakproof® No-Show High Rise
  • Rated 5 out of 5 stars
    1 week ago
    Doesn't stink

    Holds liquid for 12 hours no odor

    RP
    Rhiannon P.
    Verified Buyer
    Reviewing
    SuperPlus Leakproof® No-Show High Rise
  • Rated 1 out of 5 stars
    1 week ago
    1 Star

    got these because they were supposedly leak proof. they are not. i bled through in 3 hours of wearing them on a heavy flow day. Not sure if i got a defective pair or its just cheaply made. not biying these again

    J
    J
    Reviewing
    SuperPlus Leakproof® No-Show High Rise

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