Black Triangle

4.95 6

Black Triangle bikini top features:

  • our super soft, luxe-to-touch fabric
  • thin spaghetti straps to keep your tan lines in check
  • adjustable neck and back straps
  • fully lined
  • no padding

N O T E : designed for minimal coverage.  Please refer to size guide.

M A T C H : wear with our Black Hybrids or Black Cheekys

Phoebe (cover model) wears our Small Triangle top and their stats are: 

H E I G H T: 178cm (5’10”) 

B U S T : 82cm (32”) 

W A I S T : 64cm (25”) 

H I P : 90cms (35”) 

Brooke wears our Extra Small Triangle top - she is a standard dress size AU 8 (US 4) and her stats are:

H E I G H T : 180cm (5'11'')

B U S T : 81cm (32")

W A I S T : 66cm (26")

H I P : 91cm (36")

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    • SIZING
    • Customer Reviews

      Perfect black bikini!

      Its the perfect black bikini, and doesn't have too much unnecessary coverage(which is perfect for breasts on the smaller side), without being uncomfortably skimpy. It came within 3 days, earlier than expected, and earlier than a local store I ordered from(and paid shipping for). Review by Ozlem • (Posted on 30/06/2018)
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      I never realised how hard it would be to find a plain black bikini!! Until i found these, hands down best I've ever worn. Material is incredibly comfortable and soft. I'm a DD/E cup so was a little worried but the Large top is perfect. Also brought the rust and soon to be the yellow ♡ Review by Jess • (Posted on 29/06/2018)
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      The best

      I love this triangle too. I've been looking for something small like this. My only complaint is the strings are too long and dont have a lot of support to them since they stretch a lot. Still my favorite swimsuit. Review by Cori • (Posted on 19/06/2018)
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      My go-to triangle top!

      You know that one bikini that your reflex picks every time you have an impromptu tanning or beach agenda? THIS IS IT. The basic black triangle! Less coverage so definitely size up if you want more, but stick to your size if your aim is to keep the tan lines minimal. I love it, this is the one triangle top you need in your collection Review by @girlunspotted • (Posted on 5/01/2018)
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      Great company!

      Not only is the quality of their bikinis great and fit very well.. but the customer service is amazing!! Will definitely be buying more bikinis in the future!
      Thank you Ark:) Review by Briibo • (Posted on 22/06/2017)
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      Customer Service

      tell me, please when will be restocked! thank you

      Finally the perfect black bikini! Review by Paola • (Posted on 23/08/2016)
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    • Note: this is a size GUIDE, as we are all different shapes and sizes, and few of us are the same size across different brands.

      Our bikinis are designed for minimal coverage, so we don’t recommend you go for a size smaller than you would typically be.






      AA or A



      D or DD

      Between two sizes?  Go for the larger size - our triangles are designed for minimal coverage; you don't need less coverage than that.
      Fit: Our Triangles have been designed to minimise tanlines, so are fit for minimal coverage.  Just like the classic triangle cut, ours have adjustable neck and back straps. The triangles aren’t fixed which gives you the freedom to wear them just how you like to! If you don’t like any side boob, add a size. If you have a small bust with broad shoulders, add a size.

      After more sizing tips or advice? Head to our sizing page for more information, or contact us via our chat/support on the help widget. 

    • We have an obsession with clean, minimalist bikinis that complement the female form.  This is our take on the classic Triangle bikini top.  It considers simplicity, comfort, tan lines and flattering cuts. 

      F A B R I C : we only use the softest, most luxe-to-touch swimwear fabric we can find. 

      P A D D I N G :  we do not use padding as it becomes heavy when wet, can take a while to dry out and the removable inserts rarely stay in place.  Instead, we double up on the fabric. Every piece is lined with the same luxe fabric as on the outside. 


      Our bikinis are proudly designed in Manly Beach, Australia. We hope you love them as much as we do! 

      1. Exchanges

        We welcome exchanges for any reason.  Just send them back to us with your exchange form and we'll have your exchanged good returned to you.  Please see our returns page for conditions.


        We welcome returns for store credit.  Please see our returns page for conditions.


        Ark Swimwear does not offer refunds unless your item arrives faulty or damaged.

        Please see our RETURNS page for our full policies and Returns Form.