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Home / French Cut Underwear / Leakproof UltraThin No-Show French Cut

Leakproof UltraThin No-Show French Cut

$27.00 USD

Mix & Match: 3+ for $25 each
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Absorbs about 2.5 super tampons

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Invisible under clothes

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Moderate protection without the bulk

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Machine washable

| Black
| Black
| Black
| Black
| General
| General
| General
| General
| General

Absorbency: Moderate

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

Color: Black

Size:

True to Size

•

Size:

Size and Fit Guide

Get FREE Express Shipping on all orders $125+

Shipping

HOLIDAY SHIPPING

Give the gift of Knix! To receive your order by Dec 24th, please order by the following dates.

All States - Urban Centers (except Hawaii, Alaska)
Standard: Sunday, December 14
Express: Tuesday, December 17

Alaska, Hawaii & Rural
Standard: Wednesday, December 10
Express: Wednesday, December 10
Express shipping is unavailable for international orders:

Africa, Central/South America, and Caribbean
Standard: Wednesday, December 10

Asia, Australia, and New Zealand 
Standard: Thursday, December 11

Europe and the Middle East 
Standard: Thursday, December 11

United Kingdom, France, Germany, Netherlands, Switzerland, and Japan 
Standard: Monday, December 15

Please note: Weather conditions and carrier issues may cause delays. Delivery dates are not guaranteed.

Processing Time
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* USD = Free standard Shipping (4-8 business days)**
Expedited = $4.99 USD (3-6 business days)**

Orders under $100* USD = $7.99 USD Standard Shipping (4-8 days)**
Expedited = $9.99 USD (3-6 business days)**

*After discounts, before shipping and taxes. Processing times not included in estimates.
**Military Addresses Excluded. Standard Military Address Shipping = $10.00 USD (est. varies per location)
Easy Exchanges within 30 Days

Returns

Returns

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.

Sale & Last Call

Items discounted below 30% are eligible for size exchange or store credit. Items discounted 30% and above are final sale – no refunds, store credits, or exchanges can be accommodated.
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"They are so comfy I'm tempted to wear them even when I'm NOT bleeding!"

- Daily Mail

Comfort-First Fit

A classic mid-rise silhouette that provides medium bum coverage.

Worry-Free Protection

Our newest leakproof innovation provides more absorbency without the bulk. Patented 360 LeakSeal™ technology locks in leaks at every edge.

Moderate Absorbency

Absorbs 2.5 super tampons worth of liquid—perfect for moderate flow days, light bladder leaks, and sweat. The carbon cotton gusset top layer keeps you dry.

No-Show Style

Made from our signature buttery soft fabric with a wide, comfortable waistband. Wear it on its own or under your favorite pajamas.

Easy to Wash

Machine washable just like regular underwear.

Zoom

| Black
| Black
| Black
| Black
| General
| General
| General
| General
| General

How to Choose?

Essential

Drop
Drop
Drop
Drop
Drop
  • • Everyday Wear
  • • No leakproof protection
  • tsp
    0 tsp

Heavy

Drop
Drop
Drop
Drop
Drop
  • • heavy period days
  • • overnight protection
  • • light bladder leaks
  • 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

Drop
Drop
Drop
Drop
Drop
  • • light period days
  • • sweat
  • • discharge
  • tsp
    about 1-3 tsp
  • pad
    about 1-3 pantyliners
  • tampon
    about 1-3 regular tampons
  • cup
    about 0.5 menstrual cups

Moderate

Drop
Drop
Drop
Drop
Drop
  • • moderate period days
  • • light bladder leaks
  • • sweat
  • 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

Drop
Drop
Drop
Drop
Drop
  • • extra heavy period days
  • • overnight protection
  • • light bladder leaks
  • 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
FRESH FIX TECHNOLOGY®

Built-in protection that feels like nothing at all.

Our patented 360 LeakSeal™ technology locks in leaks at every edge. The ultra-thin liner absorbs about 2.5 super tampons worth of liquid.

Soft Top Layer

Soft Top Layer

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

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4.4
Rated 4.4 out of 5 stars
Based on 516 reviews
Total 5 star reviews: 377 Total 4 star reviews: 61 Total 3 star reviews: 35 Total 2 star reviews: 13 Total 1 star reviews: 30
88%would recommend this product
ComfortRated 4.5 on a scale of 1 to 5
EffectivenessRated 4.4 on a scale of 1 to 5
FitRated 0.1 on a scale of minus 2 to 2
Ease of UseRated 4.6 on a scale of 1 to 5
Write a Review (Opens in a new window)
516 reviews
  • Rated 5 out of 5 stars
    21 seconds ago
    Wonderful!

    Super soft, and they hold a lot of liquid, I haven't experienced any leaks

    Audrey B.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    Yesterday
    French Cut Ultra Thin

    Love this underwear. They are attractive and provide protection as well. Win Win.

    Susan P.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    Yesterday
    Leakproof ultra thin No-show French cut underware

    The fit is very comfortable and has a snug fit!

    Michele J.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 days ago
    French Cut

    When you get the size right, they are the best ever!

    Sandie B.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 days ago
    Purchase

    Comfortable and effective. Would be nice if they could be dried in the drier though.

    Sandra B.
    Verified Buyer
    Was this helpful?
  • Rated 4 out of 5 stars
    5 days ago
    4 Stars

    This goes for all the products in the package. I love Knix‘s leakproof underwear however, I think I prefer the cotton over the shiny material, but this is the first time that I’ve tried this out or that it’s been offered.

    Stephanie
    Was this helpful?
  • Rated 4 out of 5 stars
    5 days ago
    4 Stars

    This goes for all the products in the package. I love Knix‘s leakproof underwear however, I think I prefer the cotton over the shiny material, but this is the first time that I’ve tried this out or that it’s been offered.

    Stephanie
    Was this helpful?
  • Rated 4 out of 5 stars
    5 days ago
    4 Stars

    This goes for all the products in the package. I love Knix‘s leakproof underwear however, I think I prefer the cotton over the shiny material, but this is the first time that I’ve tried this out or that it’s been offered.

    Stephanie
    Was this helpful?
  • Rated 3 out of 5 stars
    6 days ago
    ok

    French cut period panties have too much excess material up the back, & legs are too big, it’s probably just the wrong style for me because I’m short, they’re still comfortable & didn’t leak with light activity. I’m trying other styles. The boy shorts fit better but needs to be wider & higher in the front absorbent coverage area. Trying dreamshorts next.

    Amanda L. W.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 week ago
    WoW!!

    I never leave reviews but I’m just so blown away. The French cut are the PERFECT underwear cut. I’m short with an hourglass figure, with a bit of a tummy from having kids. I always bought the bikini style because that’s what everyone gets, but they never quite fit my body properly. I bought the French cut style for fun during the Black Friday sale, my life is forever changed. They were made for my body type, I’m here to buy them in all the colours now. Thank you, Knix!!

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

    They are so comfortable, and work wonderfully. No more pads.

    Sherry
    Was this helpful?
  • Rated 4 out of 5 stars
    1 week ago
    French cut the perfect style

    Thin, comfortable and stylish, this is the type of undergarment I've been looking for and have now found. The Queen St. W. location (Toronto) is in a lovely heritage building and the staff gracious and helpful. Exchange was easy.

    Catherine S.
    Verified Buyer
    Was this helpful?