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Home / Up to 60% off Teen / Teen Leakproof UltraThin No-Show Bikini 3-Pack
Sale

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
| Electric Orchid/Teal Appeal/Lagoon
| Electric Orchid/Teal Appeal/Lagoon
| Electric Orchid/Teal Appeal/Lagoon
| Electric Orchid/Teal Appeal/Lagoon

Absorbency: Moderate

Moderate
Drop
Drop
Drop
Drop
Drop
about 2-4 super tampons
Light
Drop
Drop
Drop
Drop
Drop
about 1-3 regular tampons
Heavy
Drop
Drop
Drop
Drop
Drop
about 4-7 super tampons

Color: Electric Orchid/Teal Appeal/Lagoon 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

| Electric Orchid/Teal Appeal/Lagoon
| Electric Orchid/Teal Appeal/Lagoon
| Electric Orchid/Teal Appeal/Lagoon
| Electric Orchid/Teal Appeal/Lagoon

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.

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4.5
Rated 4.5 out of 5 stars
Based on 624 reviews
Total 5 star reviews: 466 Total 4 star reviews: 65 Total 3 star reviews: 35 Total 2 star reviews: 24 Total 1 star reviews: 34
88%would recommend these products
ComfortRated 4.6 on a scale of 1 to 5
FitRated -0.2 on a scale of minus 2 to 2
EffectivenessRated 4.6 on a scale of 1 to 5
Ease of UseRated 4.7 on a scale of 1 to 5
Write a Review (Opens in a new window)
624 reviews
  • Rated 5 out of 5 stars
    4 minutes ago
    Ultra Thin is accurate

    These briefs are truly ultra thin. I prefer the cotton ones so I know I have something on. If you prefer the commando feeling, try this design.

    Toni F.
    Verified Buyer
    Was this helpful?
  • Rated 1 out of 5 stars
    2 days ago
    Bikini cut

    Very small! Not at all true to size

    Cynthia H.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 days ago
    Super Comfy

    I hate wearing bulky period underwear with annoying seams. These are super comfortable and I'll definitely be buying more pairs to wear on my lighter period days.

    Tamara
    Verified Reviewer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 days ago
    First use - great!

    Got a couple of knix pairs to try out and they worked great. I wanted to be able to sleep with them while on my period and be comfortable, as it seems like I'm developing a pad allergy and I don't like sleeping with tampons. They were comfy and I didn't have any leaks! Will buy a couple more!

    Valeria R.
    Verified Buyer
    Was this helpful?
  • Rated 4 out of 5 stars
    4 days ago
    Size up!

    I love Knix! The underwear is great, but when you order this shimmer three-pack, make sure you size up! They fit VERY small.

    Lydia
    Verified Reviewer
    Was this helpful?
  • Rated 1 out of 5 stars
    4 days ago
    Missing items

    I only recieved 2 pairs in my 3 pack. This is the second time they’ve sent me partial products.

    Aliya S.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    4 days ago
    Very comfortable, love the material

    Awesome material very comfortable. Good for light days

    Giavonna D.
    Verified Buyer
    Was this helpful?
  • Rated 4 out of 5 stars
    4 days ago
    4 Stars

    Runs small . Size up

    Amanda
    Was this helpful?
  • Rated 1 out of 5 stars
    4 days ago
    Did I suddenly gain 10 lbs???

    I first ordered Knix bikini panties in a size small. Too big. I exchanged for XS and they fit perfectly. So when I ordered this three-pack, I didn't think twice and ordered XS. They're too small. Come on, Knix. Step up the product consistency please. (And other reviewers are right; the pea colour is awful).

    Christine W.
    Verified Buyer
    Was this helpful?
  • Rated 1 out of 5 stars
    6 days ago
    Far too small

    These shimmer sets are WAY too small, I’d suggest either sizing up or get the non shimmer sets. The fit of these is way off.

    Jamie M.
    Verified Buyer
    Was this helpful?
  • Rated 4 out of 5 stars
    6 days ago
    I really like the knix products

    I have really enjoyed the freedom that those have givin me

    Susan B.
    Verified Buyer
    Was this helpful?
  • Rated 3 out of 5 stars
    1 week ago
    Fit tight.

    I have had several pairs of Knix bikini panties and these definitely fit smaller than my other XL panties from Knix. The pea color ones are a terrible color.

    Holly T.
    Verified Buyer
    Was this helpful?