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Teen Leakproof UltraThin No-Show Bikini 3-Pack

A 3-pack of teen leakproof bikini-cut period underwear.
$39.00 USD

$72.00

Up to 40% Off
| Night Blossom/Velvet/Sweet Cherry
| Night Blossom/Velvet/Sweet Cherry
| Night Blossom/Velvet/Sweet Cherry
| Night Blossom/Velvet/Sweet Cherry

Color: Night Blossom/Velvet/Sweet Cherry Limited Edition

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)

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.

Rewards Members Earn 39 Points

Comfort-First Fit

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

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

| Night Blossom/Velvet/Sweet Cherry
| Night Blossom/Velvet/Sweet Cherry
| Night Blossom/Velvet/Sweet Cherry
| Night Blossom/Velvet/Sweet Cherry

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.

4.5
Rated 4.5 out of 5 stars
Based on 601 reviews
Total 5 star reviews: 455 Total 4 star reviews: 61 Total 3 star reviews: 34 Total 2 star reviews: 24 Total 1 star reviews: 27
89%would recommend these products
ComfortRated 4.5 on a scale of 1 to 5
FitRated -0.2 on a scale of minus 2 to 2
EffectivenessRated 4.5 on a scale of 1 to 5
Ease of UseRated 4.7 on a scale of 1 to 5
601 reviews
  • Rated 5 out of 5 stars
    4 minutes ago
    No show bikini 3 Pack

    Great underwear and nice to have a 3 pack with a vairety of colours. Bought two packs because they are great.

    Lynn H.
    Verified Buyer
  • Rated 5 out of 5 stars
    12 hours ago
    Love

    If you could actually love panties, this would be them. They're comfortable not to heavy in the crotch

    and do the job for a sneeze or an occasional lite leak.

    Lana F.
    Verified Buyer
  • Rated 5 out of 5 stars
    21 hours ago
    5 Stars

    Like them.

    Amy
  • Rated 5 out of 5 stars
    21 hours ago
    5 Stars

    Like them.

    Amy
  • Rated 5 out of 5 stars
    21 hours ago
    5 Stars

    Like them.

    Amy
  • Rated 5 out of 5 stars
    21 hours ago
    5 Stars

    Like them

    Amy
  • Rated 5 out of 5 stars
    Yesterday
    Happy

    Love being able to feel confident during the day. Knox makes a great product.

    Leslye P.
    Verified Buyer
  • Rated 5 out of 5 stars
    Yesterday
    Great so far!

    Bought these for my teenage daughter. So far so good!

    MELANIE H.
    Verified Buyer
  • Rated 1 out of 5 stars
    Yesterday
    They used to be so good.

    I bought these many years ago and loved them. I thought I should get some more because it couldn’t hurt. Got a medium, which is what I had gotten before and I couldn’t get them on. Returned for a large and to be honest I don’t think they are any different than the medium. I am not a large girl and they are squeezing me into oblivion. They are uncomfortable in every way imaginable.

    Stephanie A.
    Verified Buyer
  • Rated 1 out of 5 stars
    3 days ago
    Very UN-comfy!

    I wanted to love these so much but the fabric is awful.. they are stiffer and scratchier somehow, with alot less flexibility and stretch in the fabric! And they are also made very small! My usual size was way too tight.

    Chelsey S.
    Verified Buyer
  • Rated 5 out of 5 stars
    4 days ago
    Love these!

    This was a repeat order for me. I love these ultra thin undies. The leakproof moderate absorbency have better coverage in the front against leaks compared to the light absorbency.

    Rachel C.
    Verified Buyer
  • Rated 5 out of 5 stars
    4 days ago
    New type but really nice!

    At first, I wasn’t impressed because these seemed very different from my previous undies……..but as I have NOW adjusted to a different style, I’m liking them more and more! They are comfortable and cute. They fit well, wash well and make me feel secure and happy to wear them! Thank you KNIX!!

    Barbara K.
    Verified Buyer