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Home / Thong Underwear / Light Leakproof No-Show Thong
Sale

Light Leakproof No-Show Thong

$15.00 USD

$25.00

20-40% off
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Absorbs about 1 regular tampon

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Invisible under clothes

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Perfect for daily wear

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Machine washable

| White
| White
| White
| White
| General
| General

Absorbency: Light
Drop
Drop
Drop
Drop
Drop

Color: White

Size:

True to Size

•

Size:

Size and Fit Guide

Free Shipping on orders $100+

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)
Year End Sale Return Policy

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.
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"I was immediately hooked. Knix's absorbent underwear provides backup protection by holding up to one tampon of liquid"

- Glamour

Comfort-First Fit

This thong style sits lower on the hips with minimal bum coverage.

Worry-Free Protection

Our original leakproof technology offers a barely there feel while patented bonded edges help prevent side leaks.

Light Absorbency

Absorbs 1 regular tampon worth of liquid—perfect for light flow days, sweat and discharge, and backup protection for heavy flow days.

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

| White
| White
| White
| White
| 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
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 1 regular tampon worth of liquid so you feel fresh and in-control.

Soft Top Layer

Soft Top Layer

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

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4.6
Rated 4.6 out of 5 stars
Based on 2,491 reviews
Total 5 star reviews: 2k Total 4 star reviews: 299 Total 3 star reviews: 87 Total 2 star reviews: 57 Total 1 star reviews: 71
93%would recommend this product
ComfortRated 4.6 on a scale of 1 to 5
EffectivenessRated 4.6 on a scale of 1 to 5
FitRated -0.2 on a scale of minus 2 to 2
Ease of UseRated 4.2 on a scale of 1 to 5
Write a Review (Opens in a new window)
2,491 reviews
  • Rated 2 out of 5 stars
    3 minutes ago
    Not true to size

    I’m normally a size medium, sometimes small, I had to order a size large in these and they’re still too small. They dig into my hips, mind you I’m not someone with large hips.

    Jessica L.
    Verified Buyer
    Was this helpful?
  • Rated 2 out of 5 stars
    8 hours ago
    Just ok

    Not as comfortable as I thought they would be

    Stephanie M.
    Verified Buyer
    Was this helpful?
  • Rated 1 out of 5 stars
    6 days ago
    too small/strange fit

    I’m 5”4 and weigh 112, I LOVE all of my Knix underwear - boxer short, French cut, bikini - and they all fit true to size, but this was disappointing. It’s way too small, unflattering and uncomfortable.

    Pilar
    Was this helpful?
  • Rated 5 out of 5 stars
    3 weeks ago
    love it

    super comfortable, wore them all day on day 2 of my period where I am the heaviest and had no leakage

    Rebecca P.
    Verified Buyer
    Was this helpful?
  • Rated 1 out of 5 stars
    2 months ago
    The fit isn't right for me.

    The pad part in the front covers up to my pubic bone but only goes about halfway in the crotch area, and I can't move it back because the thong would be way too far up my back. The sides of the pad scrub on my leg/crotch crease as i walk. I tried the extra small and it was extremely tight and still scrubbing. If the coverage was better i think i would enjoy the product more and i would be trying to readjust all the time to avoid a leak.

    Angela
    Verified Reviewer
    Was this helpful?
  • Rated 2 out of 5 stars
    3 months ago
    Crotch Rides Up

    I have been wearing Knix Leak Proof thong for over a year. I can say they are made well. My issue with them is. mo matter what adjustment I try to make the crotch rides up in my pubic area. I am annoyed enough to stop buying them.

    Christine
    Verified Reviewer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 months ago
    Yes!!!

    I will only buy Knix underwear and these are a type that I like. They fit well and are super comfy ! Grab a pair today. I love this type as well. Can’t go wrong with any pair of underwear from Knix.

    Michelle K.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 months ago
    Awesome underwear!

    I will only buy Knix underwear and these are a type that I like. They fit well and are super comfy ! Grab a pair today.

    Michelle K.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    4 months ago
    Perfect title

    I also like this thong, very comfortable hardly even know it’s and it’s reassuring to have the extra layer in the crutch of the panties

    Jocelyn C. M.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    4 months ago
    Surprisingly comfortable

    Comfortable, cute, and served their purpose. Will be buying more.

    Maria Z.
    Verified Buyer
    Was this helpful?
  • Rated 1 out of 5 stars
    4 months ago
    Love the underwear

    I love the kind light for working out. I bought white ones to wear under white shorts, but the liner is visible through (and is black). It defeats the purpose. I am disappointed

    Lianne G.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    4 months ago
    Great!

    Highly recommend as period protection

    Leilani P.
    Verified Buyer
    Was this helpful?