1. Women
  2. Swimwear
  3. Bikinis
  4. Underwire bikinis

Women Underwire bikinis

Underwire bikinis offer the best of both worlds: they’re incredibly comfy to wear thanks to the fitted underwire, and they are super trendy! Which is why they’re a firm favourite among many women.

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Buy a women's underwire bikini

What is an underwire bikini?
Underwire bikinis have a fitted underwire, which is sewn into the underside of the bikini top. This underwire provides extra support for your breasts, as do the sturdy straps. And it’s because of these two great features that underwire bikinis are especially popular among women with fuller breasts. But of course, underwire bikinis are a great option for all women! Our underwire bikinis are available in B, C, D and E cups. Some models even go up to an E cup. Are you looking for a bikini that provides the very best support for your breasts and also looks great? Then an underwire bikini is for you!

Shop online for women’s underwire bikinis
Shopping for new swimwear has never been easier. In the old days, you used to have trail around shop after shop. But now you can just search online from the comfort of your couch! On this page you’ll find all the underwire bikinis in Protest’s fashionable bikini collection. New models are added to this collection every year – and it goes without saying that they’re all designed according to the latest swimwear trends. So sit back, relax, and buy your new underwire bikini online here!

Underwire bikinis in different colours
As with all our bikinis, our underwire bikinis come in both basic models as well as models in eye-catching colours and with colourful prints. Black underwire bikinis have been a firm favourite in many women’s wardrobes for many years, and we totally understand why! Black bikinis never go out of fashion, so you can wear them year after year! So with a black underwire bikini, you can rest assured that you’ll always be right on trend. Feeling a bit more daring, and would you prefer an underwire bikini in a fashionable colour or with a trendy print? Then Protest has lots for you! Our design team is well-known for using unique colour and print combinations. And this year’s underwire bikini collection is no exception.

Wide range of sizes
Once you’ve finally found your new underwire bikini, all you have to do is make sure you choose the right size. The underwire bikinis in our collection are available in sizes XS to XXL, giving you plenty to choose from. But how do you find the right size for you? Use our handy size chart! Measure your bust, waist, and hips and use our size chart to determine the perfect size for you. If you're unsure about which size to buy, feel free to contact us. We'd be happy to help!

PFC-free underwire bikini
As of 2020, all of our women's swimwear will be PFC-free. PFC-what? PFC-free! PFC stands for per- and poly-fluorinated chemicals. PFC chemicals are man-made chemicals that do not occur naturally in our environment, making them non-biodegradable. PFC is primarily used to make garments water-repellent. Fortunately, there is a suitable alternative to PFCs, which we use in our bandeau bikinis. Go green!

Underwire bikinis on SALE
At the end of each summer season, our underwire bikinis go on sale. This is the perfect opportunity to snag a new bikini for a great price! Tip: be sure to order fast, before your size sells out. Do you want to know when our offers start? Then sign up for our newsletter! We’ll keep you informed about new collections and other exciting news.

Not sure which style suits you best?
If you're not sure whether an underwire bikini will flatter your body type don't worry. You’re not the only one! We get that question all the time and we've wondered the same thing ourselves! That’s why we’ve put together a special bikini style guide that takes you, step by step, through all the pros and cons of the different types of swimwear.

Complete your beach outfit!
If your summer wardrobe is in desperate need of an upgrade, then you’ll probably need more than just a new underwire bikini. Luckily, in our shop you’ll find a wide range of swimwear items alongside underwire bikinis – so you can create super-trendy summer outfits: triangle bikinis, bandeau bikinis, halter neck bikinis, tankinis and push up bikinis. Need some style advice? Or do you have question? Then get in touch with our Customer Service Team! We'd be happy to help!
Select your figure (or several figures) and see which bikini types fit best:
Apple figure
  • Narrow hips
  • Broad shoulders
  • Full bust
  • Thin legs
Pear figure
  • Wide hips
  • Narrow shoulders
  • Small chest
  • Big legs
Strawberry figure
  • Narrow hips
  • Broad shoulders
  • Full bust
  • Thin legs
Straight body type
  • Narrow hips
  • Narrow shoulders
  • Small chest
  • Thin legs
Hourglass figure
  • Medium hips
  • Shoulders equal
  • Full bust
  • Shaped legs