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Home / Bikini Underwear / Light Leakproof No-Show Bikini

Light Leakproof No-Show Bikini

$25.00 USD

Mix, Match & Save: 3+ for $20 each
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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

| Warm Sand
| Warm Sand
| Warm Sand
| Warm Sand
| General
| General
| General

Absorbency: Light

Light
Drop
Drop
Drop
Drop
Drop
about 1-3 regular tampons
Essential
Drop
Drop
Drop
Drop
Drop
No Absorbency
Moderate
Drop
Drop
Drop
Drop
Drop
about 2-4 super tampons
Heavy
Drop
Drop
Drop
Drop
Drop
about 4-7 super tampons
Ultra
Drop
Drop
Drop
Drop
Drop
about 7-11 super tampons

Color: Warm Sand

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.
Easy Exchanges within 30 Days

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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"...the most comfortable period underwear I've ever tried."

- Good Housekeeping

Comfort-First Fit

Bikini silhouette with a classic mid-rise fit, medium hip and bum coverage.

Worry-Free Protection

Our original leakproof technology provides a barely noticeable feel. 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

| Warm Sand
| Warm Sand
| Warm Sand
| Warm Sand
| 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
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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Leakproof UltraThin No-Show Bikini

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4.5
Rated 4.5 out of 5 stars
Based on 6,205 reviews
Total 5 star reviews: 4.6k Total 4 star reviews: 862 Total 3 star reviews: 350 Total 2 star reviews: 183 Total 1 star reviews: 189
91%would recommend this product
FitRated -0.1 on a scale of minus 2 to 2
ComfortRated 4.6 on a scale of 1 to 5
EffectivenessRated 4.6 on a scale of 1 to 5
Ease of UseRated 4.6 on a scale of 1 to 5
Write a Review (Opens in a new window)
6,205 reviews
  • Rated 5 out of 5 stars
    1 week ago
    Comfortable

    Love these underwear for daily use. I have an IUD so never know when I’ll spot so these make me confident all day.

    Kristin I.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 week ago
    Magic!

    I don't know how they work, but love these undies! They are 100% leak proof!! I bought the medium and may size up next time as I feel they're a bit tight around the tops of my thighs - but not uncomfortable! I will definitely purchase more pairs!

    Danielle G.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 week ago
    Love them!

    I absolutely love everything about them ! They feel like your wearing nothing, so comfortable yet effective

    Cora Y.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 week ago
    Teen Light Leakproof

    I bought a three pack as it was a great sale deal! I am 65+ years old, normally wear a size 2 pant and weigh slightly under 100 #.

    By using the size and fit guide chart for adult pant size, I bumped up a size and chose the M size. They fit me perfect and are very comfortable.

    I have very minimal bladder leak, so can't necessarily judge their leakproof performance.

    Isabel N.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 weeks ago
    Fit well

    I like the fit of these and the light leak proof is perfect for my needs.

    Marie A.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 weeks ago
    Love this bikini underweat

    Great fit and comfortable with protection

    Karen M.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    Love

    These panties are similar to the ultra thin ones but adds a bit more protection. They fit amazing are comfortable as the top band is incorporated into the actual panty rather than an add on. I'm so happy with this brand I'm ditching the brand I've been wearing for 21 years

    Lana F.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    5 Stars

    Like them

    Amy
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    Light leakproof no show bilkini

    My first pair but meets all my expectations

    Sue T.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    Kelly’s review

    Love the panties but don’t like it that they don’t stay in shape. This time after washing gentle cycle, I am going to air dry & see if they hold their shape longer!

    June K. M.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    5 Stars

    I have received the order, thank you.

    Timothy
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    Love

    Great for under clothes and will not show. Definitely reccomended! Have purchased multiple times.

    Kathryn D.
    Verified Buyer
    Was this helpful?