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Home / Shop All Teen / Teen Leakproof UltraThin Bikini Holiday 3-Pack
KnixTeen

Teen Leakproof UltraThin Bikini Holiday 3-Pack

Colorful, confident-boosting underwear that’s ready to unwrap.
$65.00 USD

$75.00

Limited Edition
| Comet/Atmosphere/Starstruck
| Comet/Atmosphere/Starstruck
| Comet/Atmosphere/Starstruck
| Comet/Atmosphere/Starstruck
| Comet/Atmosphere/Starstruck
| Comet/Atmosphere/Starstruck
| Comet/Atmosphere/Starstruck
| Comet/Atmosphere/Starstruck
| Comet/Atmosphere/Starstruck

Absorbency: Moderate
Drop
Drop
Drop
Drop
Drop

Color: Comet/Atmosphere/Starstruck 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)
Easy Exchanges within 30 Days

Returns

Returns

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.

Sale & Last Call

Items discounted below 30% are eligible for size exchange or store credit. Items discounted 30% and above are final sale – no refunds, store credits, or exchanges can be accommodated.
Rewards Members Earn 65 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

| Comet/Atmosphere/Starstruck
| Comet/Atmosphere/Starstruck
| Comet/Atmosphere/Starstruck
| Comet/Atmosphere/Starstruck
| Comet/Atmosphere/Starstruck
| Comet/Atmosphere/Starstruck
| Comet/Atmosphere/Starstruck
| Comet/Atmosphere/Starstruck
| Comet/Atmosphere/Starstruck

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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4.3
Rated 4.3 out of 5 stars
Based on 3 reviews
Total 5 star reviews: 2 Total 4 star reviews: 0 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 0
67%would recommend this product
ComfortRated 3.3 on a scale of 1 to 5
FitRated -0.3 on a scale of minus 2 to 2
EffectivenessRated 3.7 on a scale of 1 to 5
Ease of UseRated 5.0 on a scale of 1 to 5
Write a Review (Opens in a new window)
3 reviews
  • Rated 3 out of 5 stars
    1 month ago
    Smaller than expected

    Ordered based off sizing guide but panties all fit much tighter and lower than expected. Not made for girls with a booty unfortunately.

    Ashley M.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 months ago
    Love the feel

    These are made from a great fabric, appear to be well made and should last for a while.

    Andrea F.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    8 months ago
    Great

    Bought knix teen period underwear for my daughter. Had the wrong size but was able to exchange easily for a size that fits her. She says they are comfortable.

    sarah F.
    Verified Buyer
    Was this helpful?