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ACOTAR™ x Knix

ACOTAR x KNIX SuperPlus Anti-fuites® Coupe Invisible Taille Haute

$39.00 CAD

Achetez 3 et plus, économisez 15 %, achetez 5 et plus, économisez 20 %

Absorbe 7 à 11 tampons super

Doublure intégrale de l'avant vers l'arrière

Coutures collées anti-fuites

Lavable en machine

Color: Velaris Night Sky Édition Limitée

Size:

Taille conforme

•

Size:

Size and Fit Guide

Les sous-vêtements antifuites sont exempts de taxe de vente au Canada*

Build Your 3-Pack

ACOTAR x KNIX SuperPlus Anti-fuites® Coupe Invisible Taille Haute

Color: Velaris Night Sky Édition Limitée

Size:

Size:

ACOTAR x KNIX SuperPlus Anti-fuites® Coupe Invisible Taille Haute

Color: Velaris Night Sky Édition Limitée

Size:

Size:

ACOTAR x KNIX SuperPlus Anti-fuites® Coupe Invisible Taille Haute

Color: Velaris Night Sky Édition Limitée

Size:

Size:

Get It Before It's Gone

ACOTAR™ x Knix

Get It Before It's Gone

This limited-edition ACOTAR™ x Knix collection brings the Courts, characters, and defining moments of A Court of Thorns and Roses™ to life through original silhouettes and exclusive prints across lingerie, sleepwear, and Knix’s signature leakproof underwear. Shop the Collection

Return Policies

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 39 Points

Part of the limited-edition ACOTAR™ x Knix Collection

Our best-selling leakproof underwear in an exclusive ACOTAR™ print.

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.

ACOTAR™ is a trademark of Fireheart Inc. ©2015-2026, Sarah J. Maas.

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Comment choisir ?

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
ACOTAR™ x KNIX

Choose your Court. Choose your fantasy.

Explore the limited-edition collection of intimates, sleepwear, and apparel inspired by the characters who rule the realm.

The Night Court

Starry skies. Unforgettable Nights. Made for deep bonds and a little...spice.
Shop the Collection

4.2
Rated 4.2 out of 5 stars
Based on 373 reviews
Reviews Summary
Customers say these underwear are comfortable and provide reliable protection. Many praise the full front and back coverage, with frequent comments highlighting their effectiveness for overnight wear and heavy flow. Users appreciate the no-show design under clothing and soft fabric. Common concerns include fit issues around the thigh and leg openings, with some noting the underwear rides up or gaps. A few mention the material feels thicker than expected, and some report leakage despite the protective design. Overall, customers find them a practical alternative to traditional products.
76%would recommend these products
ComfortRated 4.2 on a scale of 1 to 5
EffectivenessRated 4.2 on a scale of 1 to 5
FitRated 0.0 on a scale of minus 2 to 2
Keywords
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Rating
Ratings
Height
Height
How do you use your Leakproof?
How do you use your Leakproof?
Usual Pant Size
Usual Pant Size
373 reviews
  • 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 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 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 Black / XL
  • 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 5 out of 5 stars
    1 week ago
    First order

    This is the second brand of leak proof undies I have tried and could immediately tell a difference. Love the fit and they work perfectly! Will be ordering additional pairs!

    RD
    Rebecca D.
    Verified Buyer
    Reviewing
    SuperPlus Leakproof® No-Show High Rise
  • Rated 5 out of 5 stars
    1 week ago
    Super plus Leakproof no show high rise

    Let’s just say I can’t live without them! I have an undiagnosed medical condition and I have to wear them everyday…..just in case!

    SS
    Sari S.
    Verified Buyer
    Reviewing
    SuperPlus Leakproof® No-Show High Rise Velaris Night Sky / L
  • Rated 5 out of 5 stars
    1 week ago
    5 Stars

    Colour,fit and comfort

    M
    MaryAnn
    Reviewing
    SuperPlus Leakproof® No-Show High Rise Dark Cherry / XXXL
  • Rated 5 out of 5 stars
    1 week ago
    5 Stars

    I like the feel of material and the fit. Colours are great. Very comfortable

    M
    MaryAnn
    Reviewing
    SuperPlus Leakproof® No-Show High Rise Twilight Navy / XXXL
  • Rated 5 out of 5 stars
    1 week ago
    Bladder leaks contained

    I've tried several brands, that leak right through. So far these haven't. There seems to be more than one layer in them.

    Sometimes I have quite a bit leakage, that spill over the sanitary pad. So I'm pleased these have not . It does say not to Wash in hot and use hot dryer, use cold water, . Then air dry. (For longer life)? I use very short coolest temp in dryer. Ide but more but cost is a factor. They are very comfortable too.

    CK
    chiffon K.
    Verified Buyer
    Reviewing
    SuperPlus Leakproof® No-Show High Rise
  • Rated 5 out of 5 stars
    1 week ago
    Effective

    I only have 2 pair and they are working great

    AB
    Ann B.
    Verified Buyer
    Reviewing
    SuperPlus Leakproof® No-Show High Rise Warm Sand / L
  • Rated 5 out of 5 stars
    2 weeks ago
    Absorbent and Leak-proof

    Very absorbent.. I have full bladder incontinence and these keep my pants and myself feeling dry.

    LD
    Liliana D.
    Verified Buyer
    Reviewing
    SuperPlus Leakproof® No-Show High Rise Dark Cherry / XXL

Your ACOTAR™ x Knix questions, answered.