BIKYNI - The Underwire
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The Underwire


This is our most supportive top, but perfectly minimal in all the right ways. The underwire shapes and lifts, and the removable pads and removable neck ties give you options. Simple like your favorite bra, but even better because you can swim in it.

Alex is 5’10.5’’ (34’’ bust, 25’’ waist, 35’’ hips) and wearing a size S. She is wearing The Underwire in Jet and The Tieless String in Jet.

Choose a bottom and complete the set.

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The Underwire Fit

Support : Full
  • Moderate bust coverage
  • Underwire shapes and lifts
Adjustability : Yes
  • Removable neck ties
  • Thicker back ties
Padding : Yes
  • Removable memory foam pads that never lose their shape

See the Fit Guide
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The long line fit popup image

The Long Line (no S)

Size Measurements

Bust Waist Hips
XS 30A / 32A 24 34-35
S 34A/32B/34B 25-26 36-37
M 32C/34C/36B 27-28 37-38
L 36C / 34D 29-30 39-40

See the Fit Guide

The Details

  • Minimal stitching
  • Fully lined
  • Fabric composition: 80% polyamide and 20% elastane
The details underwire D9da4348fd98338c5c9d20d935315054

Material + Construction

The Source


Bergamo, Italy

Where It's Made


California, USA

The underwire

Wash + Care

Your BIKYNI can go through a lot – sun, sand, salt, sunscreen and chlorine – and deserves the right care.

To keep it in the best possible condition, rinse immediately after use in cool water – the colder the water the better – then lay it in the shade to dry. After a few wears, we suggest hand-washing in cool water using a mild detergent. Keep light and dark colors separate when wet as some items may bleed.

Rotate suits if you’re going to be wearing them on consecutive days, to let the fabric bounce back to its original shape. Finally, try to avoid dry cleaning, ironing, bleaching and rough surfaces.

Your BIKYNI will thank you.

Washing care texture Washing care machine

Pair with these

Bikini jet

The Bikini

Tieless string jet

The Tieless String