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New & Improved

Super Leakproof® No-Show French Cut

$32.00 CAD

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

Now absorbs about 6 super tampons

2" added to gusset for extra protection

Invisible under clothes

Machine washable

Megan has 36.5” hips and wears KNIX S | Black

Megan has 36.5” hips and wears KNIX S

| Black
Megan has 36.5” hips and wears KNIX S | Black

Megan has 36.5” hips and wears KNIX S

Megan has 36.5” hips and wears KNIX S | Black

Megan has 36.5” hips and wears KNIX S

| General

Megan has 36.5” hips and wears KNIX S

Color: Black

Size:

True to Size

Size:

Size and Fit Guide

Leakproof Underwear is Sales Tax Free in Canada*

Build Your 3-Pack

Super Leakproof® No-Show French Cut

Color: Black

Size:

Size:

Super Leakproof® No-Show French Cut

Color: Black

Size:

Size:

Super Leakproof® No-Show French Cut

Color: Black

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

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

"These french cut panties are the best out of the many brands and styles I've tried in the last few years."

- Sue H. | Verified Reviewer

Product Description

Total confidence with zero visible lines. Upgrade your cycle with a French cut that moves with you. Engineered with our patented high-absorbency core, these leakproof panties feature an extended gusset to prevent leaks from every angle. The moisture-wicking, anti-odor fabric keeps you feeling dry and fresh, while the wire-free, no-dig waistband ensures all-day comfort. Ditch the bulky pads and enjoy a sustainable, eco-friendly period solution that flatters your natural curves.

Comfort-First Fit

A French-cut silhouette that sits at the natural waistline and provides medium 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 regular underwear.

Zoom

Megan has 36.5” hips and wears KNIX S | Black
| Black
Megan has 36.5” hips and wears KNIX S | Black
Megan has 36.5” hips and wears KNIX S | Black
| 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

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

4.7
Rated 4.7 out of 5 stars
Based on 601 reviews
Total 5 star reviews: 489 Total 4 star reviews: 57 Total 3 star reviews: 29 Total 2 star reviews: 14 Total 1 star reviews: 12
93%would recommend these products
ComfortRated 4.6 on a scale of 1 to 5
EffectivenessRated 4.6 on a scale of 1 to 5
FitRated 0.1 on a scale of minus 2 to 2
Ease of UseRated 4.7 on a scale of 1 to 5
601 reviews
  • Rated 5 out of 5 stars
    4 minutes ago
    French cut underwear

    I think they are very effective and feel and look nice

    Jackie F.
    Verified Buyer
  • Rated 5 out of 5 stars
    Yesterday
    Love these!

    So comfortable and not tight on my belly. I’m always so bloated when I’m on my period but these don’t hurt being a higher rise underwear. I love them! Highly recommend

    Brittany B.
    Verified Buyer
  • Rated 5 out of 5 stars
    4 days ago
    Great fit, keeps me cool

    I Love these panties! The fit perfectly, they are super soft and comfortable. I had think before these but the Knix are easily my favorite. Great no leak panties. Will definitely buy again.

    Christine C.
    Verified Buyer
  • Rated 5 out of 5 stars
    5 days ago
    An excellent French Cut Underwear

    I needed an extra pair of leakproof underwear. it's my first time buying this style of underwear. It was with it & I want to say thank you Knix.

    Rainet L.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 weeks ago
    favorite!

    French cut are my favorite. (also have full brief & bikini) Knix are the BEST underwear I've ever had. They do not lose their shape after years of washing/wearing.

    Vivian C.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    Super Leakproof No Show

    Perfect fit. The panties makes you secure

    JoAnn W. J.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    Confidence

    Was worried when I first felt them they felt stiff. After 1 trip through the laundry they are soft and comfortable.

    Melissa M.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    5 Stars

    Very comfy

    Rayna
  • Rated 5 out of 5 stars
    1 month ago
    Amazing!

    I have never been so happy with a product! I would always use pads for bed time and they would shift leaving spots on my pants or my bed. I wore these last night , they were so comfortable, absorbent and I don’t feel anything on my skin the way you do with a pad. I only bought one pair to start but I’m definitely buying more. 10/10 recommend

    Stacy C.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    Just what I need!

    I have preferred French cut underwear since I first tried them. Now, finally, Knox makes a leakproof version. These are excellent: very comfortable, super leak protection, washable.

    Barbara B.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    My new fave.

    Great product and the fit is comfy. Thank you.

    Georgeen I.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 months ago
    Perfect.

    This are my favorite.

    Pam W.
    Verified Buyer

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