12 Underboob Bikinis That Have The Chicest Boob Cut-Outs

We’re just not gonna talk about tan lines...

Originally Published: 
Here are the best underboob cut-out bikinis.
Ego Swim/Fashion Nova
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Here at Bustle, we support a person’s right to show as little or as much tittie as they so choose. From sideboob to Bridgerton boob, full-coverage, or freeing the nip, there’s no wrong way to do it. When it comes to fashion, however, there are market trends that lean more towards one or the other, and currently, the pendulum has swung directly to the underboob.

Stylish celebrities such as the Jenner sisters, Vanessa Hudgens, Camila Cabello, and more are choosing outfits designed to give the reverse cleavage look. Sydney Sweeney rocked an underboob-baring suit from Frankies Bikinis in an episode of Euphoria and it became so viral she even launched her own collaboration with the brand. Before that, peek-a-boob bikini tops took a starring role in Netflix’s Too Hot To Handle. After gaining steam last year, it’s still proving to be one of summer 2023’s hottest swimsuit trends.

All this is to say, underboob swimsuits are certainly having a moment. If you're thinking of trying the spicy trend this season, you're in the right place. Keep scrolling to shop Bustle’s edit of two-piece suits that will allow your lower breast to feel the warm kiss of the sun. Now doesn't that sound nice?


This asymmetrical style comes with high-waisted bottoms that also have saucy cut-outs.


While more on the subtle side, this underwire bikini top serves a bit of underboob in a way I’ve never seen before.


Between this tangerine top and the super strappy bottoms, I’m sold on this swim set.


In a one-piece suit, these underboob cut-outs will definitely be the focal point of your beachside look.


With an extra wide keyhole and a high neckline, this revealing racerback top is giving side boob and underboob all at the same time. You quite simply love to see it.


Shop this spicy two-piece in a powdery pink color, as well as a classic black hue.


The cut-outs on this bikini won’t highlight your underboob, but its curved silhouette sure will. Plus, the brand is Hailey Bieber and Kendall Jenner-approved.


If you want a more subdued underboob look, consider this Barbiecore pink mesh swimsuit from CUPSHE that has just the hint of cleavage peering under the see-through material.


You can't really go wrong with a classic white bikini, especially one that’s specifically designed for tanning the lower tittie.


This top offers a mix of the hyper-trendy underboob style and a classic, triangle top. Not to mention, the butterfly print is one of this summer’s up-and-coming trends.


Sideboob, underboob, or waist — flaunt multiple facets at once in this zesty lemon one-piece swimsuit.


Remember Cassie’s pink swimsuit on Euphoria? Sweeney recreated the suit in a yummy cherry print with Frankies Bikinis so you, too, can pull off a Cassie. You will never ever be happier.

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