Skip to content Accessibility Statement

Shop By Category

Shop By Price

Shop by Style

More Ways to Shop

Leakproof Quiz
Why Knix Leakproof Works

Bras

More Ways to Shop

Bra Quiz
NEW Shape & Smooth Bra

Swim

ACOTAR™ x Knix

New & Trending

New Arrivals
Buy 2 Bras Save 15%
Gift Guide
15% off Knix HQ Picks

Your Bag

Your cart is empty

But you're full of potential..
Create an account to join Club Knix and earn points on this order

Suggestions

Top Picks

Super Leakproof® Mini Dream Boxer™

$48.00 USD
Buy More, Save More

Color: Red & White Stripe Limited Edition

+5

Super Leakproof® Dream Short™

$35.70 USD
$42.00
15% off

Color: Black

+4

Leakproof UltraThin No-Show Bikini

$27.00 USD
Buy More, Save More

Color: Cherry Limited Edition

+5

Super Leakproof® Dream Boxer™

$48.00 USD
Buy More, Save More

Color: Midnight/Cherry Polka Dot Limited Edition

+4
Home / / Teen String Bikini Top
KnixTeen

Teen String Bikini Top

$35.00 USD

Adjustable string ties

Built-in shelf bra with removable cups

Premium UPF 50+ fabric

Color: Black

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 Returns within 30 Days

Apparel, Sleep & Swim

Returns & Exchanges

Holiday Return Policy
Eligible items purchased online or in stores between November 2, 2026 and December 31, 2026 may be returned through January 29, 2027. All other purchases fall under our 30 day Returns Policy.

Standard Return Policy
Apparel (excluding Shapewear), sleep and swim are eligible for return or exchange within 30 days of delivery with tags attached. Swim bottoms and one-pieces must have the original sanitary strip intact.

Still have questions? View our full policy here.
Rewards Members Earn 35 Points

Product Description

Shop the Knix Teen Triangle Bikini Top: A fully reversible, classic triangle top with adjustable ties for a custom, secure fit. Features UPF 50+ protection and chlorine-resistant fabric. Two colors in one! The perfect versatile staple for beach days and pool parties. Available in inclusive teen sizes.

Swim Style

Designed with classic triangle cups and adjustable ties at the neck and back, it’s easy to customize the fit while keeping things light and comfortable.

Sun-Smart Protection

UPF 50+ fabric protects your skin while you soak up the sun.

Zoom

Explore Teen Best-Sellers

Teen Super Leakproof® Sleepover Boxer

$45.00 USD
Buy More, Save More

Color: Blue Stripe

+3

Teen Leakproof UltraThin No-Show Bikini 3-Pack

$65.00 USD
$72.00
Save $7

Color: Blossom Fields/Red Bows/Gum Drop Limited Edition

+4

Teen Leakproof UltraThin No-Show Thong

$24.00 USD
Buy More, Save More

Color: Bluebell Limited Edition

+4

Teen Period Swim Bikini Bottom

$45.00 USD

Color: Black

+1

Teen Super Leakproof® Mini Sleepover Boxer

$45.00 USD
Buy More, Save More

Color: Night Sky Limited Edition

Teen First Period Kit - Bikini

From 
$142.00 USD
$187.00
Save $48

Teen Period Emergency Kit - Bikini

From 
$40.00 USD
$46.00
5.0
Rated 5.0 out of 5 stars
Based on 2 reviews
100%would recommend this product
ComfortRated 4.0 on a scale of 1 to 5
FitRated 0.0 on a scale of minus 2 to 2
SupportRated 2.0 on a scale of 1 to 5
Search
Search Reviews
Rating
Ratings
Current Band Size
Current Band Size
Current Cup Size
Current Cup Size
Write a Review (Opens in a new tab)
2 reviews
  • Rated 5 out of 5 stars
    3 months ago
    KT Bikini Top

    True to size, my daughter loves the Knix Teen swim sets! Great quality! Will continue to purchase these, bring back the stripes!!! :)

    JS
    Jessica S.
    Verified Buyer
    Reviewing
    Teen String Bikini Top
    Was this helpful?
  • Rated 5 out of 5 stars
    4 months ago
    Perfect!

    A great triangle bikini top. My daughter loves the simplicity and ease in wearing. Goes great with a variety of Knix bikini bottoms. A perfect staple item.

    K Profile picture for Knix
    Knix
    4 months ago

    Hey Alisa!

    This is wonderful! We're so happy your daughter loves her Teen String Bikini Top. There's nothing better than finding that perfect staple piece!

    Team Knix

    AB
    Alisa B.
    Verified Buyer
    Reviewing
    Teen String Bikini Top
    Was this helpful?

Shop by Category

Shop Teen Period Sleep

Teen Period Sleep

Shop Teen Period Undies

Teen Period Undies

Shop Teen Period Swim

Teen Period Swim

Shop Teen Period Kits

Teen Period Kits

Shop Teen Period Activewear

Teen Period Activewear

Shop Teen Leakproof Shortie

Teen Leakproof Shortie