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Sale

Light Leakproof No-Show Thong - Last Call

$17.50 USD

$25.00

30% off

Absorbs about 1 regular tampon

Invisible under clothes

Perfect for daily wear

Machine washable

Color: White

Size:

True to Size

Size:

Size and Fit Guide

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.

Last Call Return Policy

Sale & Last Call

Our Sale Policy

Here's how returns and exchanges work for sale items.

  • Items discounted up to 30% are eligible for a size exchange or store credit
  • Items discounted above 30% are final sale. No refunds, store credits, or exchanges
  • Not sure where your item lands? Chat with us and we'll check for you

Still have questions? View our full policy here.

Rewards Members Earn 17 Points

"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

Buttery-soft and smooth fabric gives a seamless look and feel. Disappears under clothes, even leggings.

Easy to Wash

Machine washable just like regular underwear.

Zoom

| White
| White
| White
| White
| General
| 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
4.6
Rated 4.6 out of 5 stars
Based on 2,541 reviews
Total 5 star reviews: 2k Total 4 star reviews: 301 Total 3 star reviews: 93 Total 2 star reviews: 61 Total 1 star reviews: 73
93%would recommend these products
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Rating
Ratings
2,541 reviews
  • Rated 5 out of 5 stars
    4 minutes ago
    5 Stars

    Love this brand, very comfortable, no issues with lying down and feeling seems. I forget I'm wearing them. They will fall apart tho if you wash them in hot water too much. (The adhesive melts)

    Ricci
    Reviewing
    Light Leakproof No-Show Thong 3-Pack
  • Rated 5 out of 5 stars
    4 days ago
    First time trying and love them!!

    These thong underware and the most comfortable I have ever had! Can’t wait to try more items! Hoping they get a seamless strapless bra sometime soon.

    KU Profile picture for Knix US 2.0
    Knix US 2.0
    4 days ago

    Hey Stacey!

    This is amazing! We're so thrilled you're loving the comfort of your first Knix thongs. Thanks for the feedback about a seamless strapless bra too!

    Team Knix

    Stacey S.
    Verified Buyer
    Reviewing
    Light Leakproof No-Show Thong
  • Rated 3 out of 5 stars
    6 days ago
    Not for bleeding days

    I love the knix products. I decided to try the no-show thong as I have a light flow. But the protection layer is not long and wide enough, which means I bleed through the thong. As a reference, I also have the light leakproof no-show bikini and the protection perfect. So I will be using the thong more as a panty liner.

    The band of the thong is also tighter than the bikini.

    KU Profile picture for Knix US 2.0
    Knix US 2.0
    6 days ago

    Hey Emilie!

    Thanks for the honest review! We appreciate the feedback about the coverage area. So glad the bikini style works perfectly for you and that you found another use for the thong!

    Team Knix

    Emilie M.
    Verified Buyer
    Reviewing
    POS - Light Leakproof No-Show Thong 3-Pack (ZSkus)
  • Rated 4 out of 5 stars
    1 week ago
    Cute, but sizing fits smaller than the briefs style underwear!

    I've had a few pairs of the briefs style underwear and absolutely love them, so I decided to buy the thong version. I ordered the same size, and they fit much smaller and lower than the other pairs I have. I would recommend sizing up if you want a higher rise and a more seamless fit!

    KU Profile picture for Knix US 2.0
    Knix US 2.0
    1 week ago

    Hey Lisa,

    Thanks for your feedback! We appreciate the sizing tip about the thongs fitting differently than the briefs style. Your recommendation to size up will definitely help other customers!

    Team Knix

    Lisa D.
    Verified Buyer
    Reviewing
    Light Leakproof No-Show Thong 3-Pack
  • Rated 5 out of 5 stars
    1 week ago
    Life changing

    Honestly don’t know what I was doing all these years without them. Taken the stress of bleeding through completely off the table.

    rachel f.
    Verified Buyer
    Reviewing
    POS - Light Leakproof No-Show Thong 3-Pack (ZSkus)
  • Rated 5 out of 5 stars
    2 weeks ago
    Love

    I bought these because I’m a sweaty person. I don’t wear them for leakproof periods. However, they work exactly as I had hoped. I love them, and I have quickly replaced all of my thongs with these!

    For reference, I’m 5’5” and 140#. I order size XL because I hate when my underwear is even the slightest bit tight. I could definitely do size large, or maybe even size medium, but I prefer a roomier version.

    Jill M.
    Verified Buyer
    Reviewing
    Light Leakproof No-Show Thong 3-Pack
  • Rated 3 out of 5 stars
    2 weeks ago
    just ok

    the sides roll up in the gusset area

    kelli s.
    Verified Buyer
    Reviewing
    Light Leakproof No-Show Thong 3-Pack
  • Rated 5 out of 5 stars
    2 weeks ago
    Favourite Underwear

    These are the perfect mix of comfortable, functional and no show. Wear them even when I’m not in my period as their great for working out or add protection if you can’t cross your legs when you sneeze 😜

    Jenn B.
    Verified Buyer
    Reviewing
    Light Leakproof No-Show Thong
  • Rated 5 out of 5 stars
    3 weeks ago
    The best basics

    Love these. Comfortable and discreet.

    Selen S.
    Verified Buyer
    Reviewing
    Light Leakproof No-Show Thong
  • Rated 5 out of 5 stars
    3 weeks ago
    Comfy

    I haven’t tried with a period but it’s comfy just wearing in a hot day

    Kamila Z.
    Verified Buyer
    Reviewing
    POS - Light Leakproof No-Show Thong 3-Pack (ZSkus)
  • Rated 5 out of 5 stars
    1 month ago
    Best panties EVER!!!

    I am a woman in my young 50's and I have been wearing these panties for over 10 years and they are so comfortable, durable and LEAKPROOF.

    Dawn C.
    Verified Buyer
    Reviewing
    Light Leakproof No-Show Thong 3-Pack
  • Rated 5 out of 5 stars
    1 month ago
    Fantastic!

    I love these underwear! They are absolutely fantastic for the lighter days of my period, and they feel so comfortable. I will absolutely be purchasing more of these.

    Haydn W.
    Verified Buyer
    Reviewing
    Light Leakproof No-Show Thong

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