Tulum Tie Top - Cosmopolitan

Cosmopolitan

$59.00 Sale Save

The Tulum Tie Top is our timeless take on the classic triangle bikini — minimal, flattering, and easy to wear year-round. Now in Cosmopolitan, crafted from our soft, shiny Italian Sumatra fabric for a smooth, sun-catching fit that feels luxe and effortless.

Perfectly cut to keep tan lines minimal without sacrificing comfort, this go-to triangle top is designed for easy days under the sun and beyond. Inspired by the natural beauty of Tulum, Mexico — proof that simple can still turn heads.

Pair it with the Tulum Tie Bottom, Swami bottom or Trestles bottom for a set that feels iconic and unmistakably you.

Fit Note: Runs slightly small — if between sizes, we recommend sizing up.

Our Tulum tie top is sustainably produced from reclaimed materials and offers a low carbon footprint. Our fabrics are dyed or printed using eco-friendly inks from Huntsman and Dystar and certified eco-friendly, tested by GRS and UTrust.

Fabric - Italian Carvico Sumatra: 80% Nylon + 20% LYCRA® XTRA LIFE™ 

Has a glossy, silky charmeuse look and feel

Soft and breathable, chlorine resistant

Learn more about Repreve fabric: https://repreve.com

Care – Rinse with cold water and hang in shade to dry, especially after saltwater. Do not bleach.

  • Classic triangle top
  • Adjustable neck and back ties
  • Double-lined
  • Removable padding

Runs slightly small. If you are between sizes, we recommend sizing up.

Please refer to our size guide for more details

Size XS
Color Cosmopolitan
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Customer Reviews

Based on 10 reviews
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V
Val
So pretty!

So happy with this bikini top! Super soft, a beautiful steel blue color, and very flattering. I love how it stays put while I'm moving around and still makes me feel confident and is super flattering. I usually get tops in a size xs but sized up to a small and it fits perfectly the way I'd like.

l
lianett bussott
Runs small

I always ordered XL tops from here and they fit perfect. Although this one I ordered an XL and it fit me like a M so I’m gonna get an XXL and hopefully it fits perfectly bc I am a repeat customer and I ADORE siennaswim

A
Aurora

Super sweet customer service! & i love the material ! It does run a little small imo, i usually wear an s or m depending on coverage and i ended up needing a large cause i wanted full coverage :)

C
Clare

A little smaller then I guessed but I still love it and the material is great, I am a 32C if you want more coverage get a size up but the S still keeps everything in

K
Kristen Claude
Love Sienna Swim

My go to bikinis!! Beautiful designs, flattering on and fit perfectly!