Triangle Bikini Top

A classic triangle bikini top with a secure underband and adjustable straps for the perfect amount of support. Pair with a Period-Proof Swim Bottom for total confidence.
The swim top that always makes a splash.
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Designed to provide ultimate comfort and support.
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Free from PFAS and harmful chemical treatments.
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Simple care with mild detergent and machine wash on cold.
A classic triangle bikini top with a secure underband and adjustable straps for the perfect amount of support. Pair with a Period-Proof Swim Bottom for total confidence.

Body: 85% Nylon, 15% Spandex  

Fabric is seawater and chlorine resistant and has 50+ SPF protection.   

Machine-wash cold, lay flat to dry. Do not bleach.

Eligible for a return or exchange within 30 days of delivery with original tags attached.

We ship our items via DHL, or Canada Post depending on your location. Please allow 1-2 business days for your order to dispatch.

For orders to Canada please allow 2-4 business days for shipping to the GTA, 3 - 10 business days for urban areas, and 6-15 business days for remote locations.

For orders to the US please allow 3-10 business days for orders to arrive.

For international orders please allow 10-25 business days.

NOTE: orders placed on Friday after 1 pm will not be processed until the following Monday.

Please see our Shipping page for more info.

FOR THE PLANET
FOR REAL LIFE
FOR THIS GENERATION
FOR THE PLANET
FOR REAL LIFE
FOR THIS GENERATION
FOR THE PLANET
FOR REAL LIFE
FOR THIS GENERATION
FOR THE PLANET
FOR REAL LIFE
FOR THIS GENERATION
FOR THE PLANET
FOR REAL LIFE
FOR THIS GENERATION
FOR THE PLANET
FOR REAL LIFE
FOR THIS GENERATION
FOR THE PLANET
FOR REAL LIFE
FOR THIS GENERATION
FOR THE PLANET
FOR REAL LIFE
FOR THIS GENERATION
FOR THE PLANET
FOR REAL LIFE
FOR THIS GENERATION
FOR THE PLANET
FOR REAL LIFE
FOR THIS GENERATION
FOR THE PLANET
FOR REAL LIFE
Nothing is TMI here—we promise.
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All of our swimsuits have the same patented, 3-layer leakproof technology as our underwear plus an additional thin layer of waterproof material for extra protection. Here’s the breakdown.

First layer: Moisture-wicking, antimicrobial technology wicks away sweat and moisture while neutralizing odors to keep you fresh all day long.

Second layer: A super thin, highly-absorbent liner that holds the power of 3 tampons.

Third layer: A secure, liquid-resistant outer layer keeps leaks from happening.

Fourth layer: Another thin layer of waterproof material for extra protection.

KT Swimwear has a super discreet absorbent pad in the gusset liner that absorbs up to 3 tsps of blood, which equals about 3 tampons or pads.

Not always. When your flow is light, KT Swimwear can be worn alone without any additional period protection. On super heavy days,  the swimwear works great as backup protection with a tampon or menstrual cup. Every period is different though, and we recommend doing whatever makes you feel most confident.

The layers in the gusset of the underwear work to trap and absorb blood. We want you to feel 100% confident in your KT Swimwear, so if it is a super heavy flow day, we suggest wearing a tampon or menstrual cup with your suit.

Just machine-wash cold and lay flat to dry. Do not bleach.

Definitely. KT Swimwear is seawater and chlorine resistant, and has 50+ SPF protection!

If you’re not sure which size underwear to get, just book a Virtual Fitting and someone from the Knix team will video chat you to walk you through everything!

Yes. All KT Period-Proof Swim Bottoms and One-pieces are eligible for a return or exchange within 30 days of delivery and with original sanitary strip and tags attached. KT Period-Proof Swim Tops are eligible for a return or exchange within 30 days of delivery with original tags attached.

Absolutely. KT Swimwear looks and feels just like regular swimwear with a barely-there, leakproof liner.

Our styles are made to fit teen bodies. For Period-Proof Underwear in adult sizes, please visit Knix.com.

COMFORTABLE
ABSORBENT
JUST PLAIN BETTER
REUSABLE
COMFORTABLE
ABSORBENT
JUST PLAIN BETTER
REUSABLE
COMFORTABLE
ABSORBENT
JUST PLAIN BETTER
REUSABLE
COMFORTABLE
ABSORBENT
JUST PLAIN BETTER
REUSABLE
COMFORTABLE
ABSORBENT
JUST PLAIN BETTER
REUSABLE
COMFORTABLE
ABSORBENT
JUST PLAIN BETTER
REUSABLE
COMFORTABLE
ABSORBENT
JUST PLAIN BETTER
REUSABLE
COMFORTABLE
ABSORBENT
JUST PLAIN BETTER
REUSABLE
Reviews
average rating 5.0 out of 5
Based on 3 reviews
  • 5 Stars
    3 Reviews
  • 4 Stars
    0 Reviews
  • 3 Stars
    0 Reviews
  • 2 Stars
    0 Reviews
  • 1 Star
    0 Reviews
100% of reviewers would recommend this product to a friend
Quality
Rated 5 out of 5
Comfort
Rated 5 out of 5
Effectiveness
Rated 5 out of 5
Sizing
Rated 0 on a scale of minus 2 to 2, where minus 2 is Fits Small, 0 is True to Size and 2 is Fits Large
3 Reviews
Reviewed by Caitlin D.
Verified Buyer
I recommend this product
I'm a...
Adult
I purchased for...
Myself
Band Size
32"
Pant Size
Teen 18-20
Size Purchased
M
Usage
  • Pool
  • Beach
  • Sun Bathing
Rated 5 out of 5
Review posted

Cute top!

I love the design of this top, and especially the fact that it doesn't have any plastic-y grips that usually end up rubbing after a day of wear. This top is super comfy all day long, and surprisingly supportive for a triangle top. No wardrobe malfunctions!

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Quality
Rated 5 out of 5
Comfort
Rated 5 out of 5
Effectiveness
Rated 5 out of 5
Sizing
Rated 0 on a scale of minus 2 to 2, where minus 2 is Fits Small, 0 is True to Size and 2 is Fits Large
Was this helpful?
Reviewed by Megan
Verified Buyer
I recommend this product
I'm a...
Parental Figure
I purchased for...
A Teenager/Tween
Band Size
32"
Pant Size
Teen 12-16
Size Purchased
M
Usage
  • Pool
  • Beach
Rated 5 out of 5
Review posted

Fits and looks as expected

Great product, great service as always. Thank you.

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Quality
Rated 5 out of 5
Comfort
Rated 5 out of 5
Effectiveness
Rated 5 out of 5
Sizing
Rated 0 on a scale of minus 2 to 2, where minus 2 is Fits Small, 0 is True to Size and 2 is Fits Large
Was this helpful?
Reviewed by Julia G.
Verified Buyer
I recommend this product
I'm a....
Parental Figure
I purchased for
A Teenager/Tween
Band Size
30"
Pant Size
Teen 00-2
Size Purchased
M
Usage
  • Pool
  • Sun Bathing
Rated 5 out of 5
Review posted

Triangle bikini top /bottoms

My daughter loves this bathing suit and so so do I. You would never know it is not a regular suit and now she can swim with no worries!

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Quality
Rated 5 out of 5
Comfort
Rated 5 out of 5
Effectiveness
Rated 5 out of 5
Sizing
Rated -1 on a scale of minus 2 to 2, where minus 2 is Fits Small, 0 is True to Size and 2 is Fits Large
Was this helpful?