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Shorty Garçon Invisible Super Anti-Fuites®

$32.00 CAD

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

Absorbe désormais l'équivalent d'environ 6 super tampons

2" ajoutés au gousset pour une protection accrue

Invisible sous les vêtements

Lavable en machine

Color: Midnight/Cherry Polka Dot Édition Limitée

Size:

Taille conforme

•

Size:

Size and Fit Guide

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

Créez votre lot de 3

Shorty Garçon Invisible Super Anti-Fuites®

Color: Midnight/Cherry Polka Dot Édition Limitée

Size:

Size:

Shorty Garçon Invisible Super Anti-Fuites®

Color: Midnight/Cherry Polka Dot Édition Limitée

Size:

Size:

Shorty Garçon Invisible Super Anti-Fuites®

Color: Midnight/Cherry Polka Dot Édition Limitée

Size:

Size:

Livraison gratuite pour les commandes de 100 $ et plus

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 $125* CAD = Free Shipping (2-6 business days)

Orders under $125* 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.

Première paire sans risque pendant 30 jours

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 32 Points

J'adore ces articles. Je me sens plus en sécurité quand je les porte. Je ne m'inquiète plus de sortir.

- Charlene M. | Acheteuse vérifiée

Product Description

The ultimate "no-worry" period essential. Experience the comfort of a soft, stretchy boyshort with the powerhouse protection of Knix Super Leakproof technology. These boyshorts are engineered to replace disposable pads and liners, offering a solution that keeps you dry and fresh. The high-performance, moisture-wicking fabric and anti-odor technology make them ideal for all-day wear or a restful night’s sleep. Experience seamless period protection in a silhouette that never digs in or rolls up.

Comfort-First Fit

Boyshort silhouette with a mid-rise fit and extra hip and bum coverage.

Worry-Free Protection

Patented bonded edges help 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 your regular underwear.

Zoom

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
TECHNOLOGIE ÉTANCHE BREVETÉE

Une protection intégrée qui ne se sent pas du tout

Notre technologie Fresh Fix® d'origine est dotée d'une doublure absorbante intégrée qui absorbe l'équivalent de 3 à 6 tampons super, afin que vous vous sentiez fraîche et en contrôle.

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 4,502 reviews
Reviews Summary
Customers say these boyshorts are comfortable and provide excellent protection against leaks. Many appreciate the soft, stretchy fabric and secure fit that stays in place without rolling or bunching. Users frequently mention feeling confident wearing them for overnight protection and heavy flow days. Several note the underwear is invisible under clothing and doesn't feel bulky. Common praise includes the smooth material and good coverage. However, some customers report concerns about recent style changes, with the waistband now sitting lower and causing rolling issues. A few mention the gusset could be longer for better coverage, and some find the seams uncomfortable or thick. Despite mixed feedback on sizing and fit preferences, most reviewers express satisfaction with the leak protection and comfort.
93%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 0.0 on a scale of minus 2 to 2
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How do you use your Leakproof?
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Usual Pant Size
Usual Pant Size
4,502 reviews
  • Rated 5 out of 5 stars
    2 days ago
    Very effective

    They work really well!

    CC
    Cristie C.
    Verified Buyer
    Reviewing
    Super Leakproof® No-Show Boyshort Twilight Navy / M
  • Rated 5 out of 5 stars
    2 days ago
    Great fit

    I ordered these for my girlfriend, and she loves the snug, comfortable fit without feeling as though they are too tight on her body. She’s happy with how well they hold up over time (washing them over time doesn't compromise their integrity). She also impressed with their absorbency.

    Overall, they’re reliable and comfortable, making them a solid choice for use while she is on or expecting her period.

    JZ
    Jeremy Z.
    Verified Buyer
    Reviewing
    Super Leakproof® No-Show Boyshort Dark Cherry / XS
  • Rated 5 out of 5 stars
    1 week ago
    Great for every preteen and teen

    My daughter started pretty early at the age of 9, not to mention she is on the spectrum. Of course birth control was brought up as a way to prevent it or "reduce" it. But I was absolutely against that so I did some research and came across Knix. Yes it was an upfront cost that I wasn't sure was going to work but truly this company is such a blessing. She is comfortable and I don't have to stress about her leaking at school or feeling embarrassed. They are so soft and you can feel the quality. We absolutely LOVE them and recommend to all of our friends.

    AC
    Amber C.
    Verified Buyer
    Reviewing
    Teen Super Leakproof® No-Show Boyshort 3-Pack - Last Call
  • Rated 5 out of 5 stars
    2 weeks ago
    Great product

    My teen recently got her period, these have been a game changer. No longer is she leaking during school these have a good amount of absorbency.

    DZ
    Dawn Z.
    Verified Buyer
    Reviewing
    Teen Super Leakproof® No-Show Boyshort Ditsy Blossom / M
  • Rated 5 out of 5 stars
    3 weeks ago
    Great fit

    I really like the boy short cut. I am petite so the full panty is too long. The high cut is also too open.

    The super leak proof is a bit thick, but necessary at times. For everyday wear I recommend the light leakproof.

    WM
    Wanda M.
    Verified Buyer
    Reviewing
    Super Leakproof® No-Show Boyshort Black / L
  • Rated 5 out of 5 stars
    1 month ago
    Great value and comfort

    Fantastic

    WC
    Wendelyn C.
    Verified Buyer
    Reviewing
    Super Leakproof® No-Show Boyshort - Original - Last Call
  • Rated 5 out of 5 stars
    1 month ago
    Great shorts

    Lots of coverage, nice smooth material

    LP
    Larissa P.
    Verified Buyer
    Reviewing
    Super Leakproof® No-Show Boyshort
  • Rated 5 out of 5 stars
    1 month ago
    Like it

    Fit is good, does the job

    IF
    ilana f.
    Verified Buyer
    Reviewing
    Super Leakproof® No-Show Boyshort Twilight Navy / S
  • Rated 5 out of 5 stars
    1 month ago
    Perfect for teens/tweens

    These are the best. Comfortable, secure & ample room for a young girl with booty! These super leak proof ones can make it through a full day of school, a full night (in a pinch), and were a godsend at stay-away camp (makes "pack it in, pack it out" much easier).

    Highly recommend.

    CC
    Christina C.
    Verified Buyer
    Reviewing
    Teen Super Leakproof® No-Show Boyshort 3-Pack Night Sky/Beige/Black / M
  • Rated 5 out of 5 stars
    1 month ago
    Work as advertised

    Great alternative to disposable pads. No leaks, comfortable fit.

    KB
    Kathryn B.
    Verified Buyer
    Reviewing
    Teen Super Leakproof® No-Show Boyshort Ditsy Blossom / XS
  • Rated 5 out of 5 stars
    1 month ago
    Love it

    I love the absorbency. I have one less thing to worry about when I wear these!!!

    TN
    Tanzania N.
    Verified Buyer
    Reviewing
    Super Leakproof® No-Show Boyshort Black / L
  • Rated 5 out of 5 stars
    1 month ago
    Super Leakproof No Show Boyshort

    I have wore this style of underwear for four years now I believe. It is comfortable and I am very pleased with the fit and do not have to worry about bladder leaks. A wonderful product. Thank you!

    GL
    Gail L.
    Verified Buyer
    Reviewing
    Super Leakproof® No-Show Boyshort Warm Sand / L

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