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Leakproof UltraThin No-Show French Cut

$27.00 USD

Mix, Match & Save: 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

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Color: Blue Light Limited Edition

Size:

True to Size

Size:

Size and Fit Guide

Build Your 3-Pack

| Blue Light

Leakproof UltraThin No-Show French Cut

Color: Blue Light Limited Edition

Size:

Size:

| Blue Light

Leakproof UltraThin No-Show French Cut

Color: Blue Light Limited Edition

Size:

Size:

| Blue Light

Leakproof UltraThin No-Show French Cut

Color: Blue Light Limited Edition

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

Leakproof Underwear, Risk Free
Trying leakproof underwear for the first time? Your first pair is completely risk free for 30 days. Wear them, wash them, and see how they work for your body. If they’re not right for you, we’ll refund your first pair. Prefer a different size or style? We also offer free exchanges.

How it works:

  • Risk free applies to leakproof underwear on your first order
  • Refund covers the item price (original shipping excluded)
  • Just email info@knix.com and we’ll take care of you

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 27 Points

"They are so comfy I'm tempted to wear them even when I'm NOT bleeding!"

- Daily Mail

Product Description

These underwear feature our buttery soft fabric and offer a flattering mid coverage french cut. Great for leak protection, the ultra-thin liner absorbs about the same as 2.5 super tampons or 1 regular pad’s worth. Get the protection you want from periods and light bladder leaks while feeling comfortable and worry-free.

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.

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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
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.

4.4
Rated 4.4 out of 5 stars
Based on 563 reviews
Total 5 star reviews: 407 Total 4 star reviews: 69 Total 3 star reviews: 37 Total 2 star reviews: 16 Total 1 star reviews: 34
87%would recommend this product
FitRated 0.1 on a scale of minus 2 to 2
ComfortRated 4.5 on a scale of 1 to 5
EffectivenessRated 4.4 on a scale of 1 to 5
Ease of UseRated 4.6 on a scale of 1 to 5
563 reviews
  • Rated 5 out of 5 stars
    Yesterday
    Ultra thin French cut panties

    I love how absolutely thin, soft, and comfortable these panties are. Will definitely be ordering more.

    Leesha D.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 days ago
    Absolutely love these panties

    Perfect for me

    Karen A.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 days ago
    Comfortable

    Feel confident in total comfort.

    Jamie W.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 week ago
    New purchase

    very comfortable and took care of my bladder leakage

    Jennifer R.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 week ago
    .

    .

    Lorraine R.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 week ago
    Wonderful panties

    Very effective, great protection and launder easily. No visible lines or discomfort. This is my 3rd time ordering and will definitely do so again.

    Bonnie M.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 weeks ago
    French cut leakprrof pantie

    Ok. I ordered too large

    Janet G.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    5 Stars

    Love the bra

    Lisa
  • Rated 5 out of 5 stars
    3 weeks ago
    Loved .fit as expected , stay in place under slacks best of all no lines . I will order more . Lastly cute!

    Great cut . No leakage

    Susan V.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    Leakproof ultra thin no show French cut

    Very comfortable feels like you are not wearing any thing.

    Therese H.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    French Cut Ulta Thin Panties

    I love the polka dots. Comfortable and sexy.

    Barbara B.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    Need more French Cut!

    The 1st pr was a L, too tight for my belly, but this XL Bl. Poka Dot fits perfect. Thank you Knits for the new pair.

    Brenda P.
    Verified Buyer