Coastal Signal Underboob Bikini






































Coastal Signal Underboob Bikini
LIMITED EDITION
$99.99 Original price was: $99.99.$38.99Current price is: $38.99.
- FREE SHIPPING ON ALL ORDERS
- 50% OFF TODAY ONLY
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- EASY RETURNS - 30-day hassle-free returns
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- 5 star ⭐ Rated with 200,000+ Happy Customers
- Description
Description
Step into that effortless, sun-drenched confidence with the Coastal Signal Underboob Bikini — a clean, minimal set designed to highlight your shape in the most natural, striking way. It’s the kind of underboob bikini that feels easy, light, and quietly bold from the moment you put it on.
The triangle top features a subtle underboob cut that creates a lifted, sculpted look while keeping the design soft and wearable. Thin halter straps tie at the neck and back, letting you adjust the fit exactly how you like it. The textured fabric adds a gentle dimension, giving the bikini a refined, elevated feel without overcomplicating the look.
The matching bottoms sit low on the hips with delicate side ties, creating that relaxed, leg-lengthening silhouette. The cut is minimal and flattering, designed for tanning, movement, and that effortless beach energy that feels natural and confident.
It’s the kind of set you reach for on repeat — simple, flattering, and made for long days in the sun.
• Underboob bikini design with a soft, sculpting cut
• Triangle top with adjustable halter and back ties
• Subtle textured fabric for a refined look
• Low-rise thong-style bottoms with side ties
• Minimal coverage for a clean, elongated silhouette
• Lightweight, stretchy fabric that feels soft on the skin
This piece is released in limited quantities and won’t be restocked. If it fits your vibe, now’s the moment to make it yours.
FREE WORLDWIDE SHIPPING!
Shipping times:
- USA & Canada: 5–10 business days
- Germany, Switzerland, Austria: 5–14 business days
- United Kingdom: 5–14 business days
- France: 5–14 business days
- Australia: 5–14 business days
- Worldwide: 7–14 business days
Full details can be found in our Shipping Policy.
We offer easy 30-day hassle-free returns on all items. Items must be unused and in their original condition with tags and hygiene seals (where applicable) still attached.
To start a return, simply contact our support team with your order number and we’ll guide you through the steps.

Coastal Signal Underboob Bikini
$99.99 Original price was: $99.99.$38.99Current price is: $38.99.
10 reviews for Coastal Signal Underboob Bikini
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This product combines simplicity and style, making it a staple for any wardrobe. With its durable fabric and minimalistic design, you’ll find yourself reaching for it time and time again.
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Join Thousands of Happy Swimmers
Jenny S.
Sunset & Swim has become my go-to swimwear store. The shipping was fast, and the quality is way better than other brands.
Emily Thompson
Honestly the best bikini I own. I was nervous about ordering online but the quality and support exceeded my expectations. I feel amazing in it.
Sarah Walker
Gorgeous swimsuit, highly recommend
Ashley Morgan
Received sooo many compliments in this stunning beach cover up dress!
Laura Carter
My third time buying❤️ I recommend to everyone ❤️

























ali –
very skimpy fits well enough though
Kayla Miller –
wasnt sure about the micro fit but it actually stays in place better than expected. the fabric has a nice sheen to it too
jess –
its really nice
Sienna –
literally the perfect tanning bikini. the strings are so tiny so you barely get any lines. i’ve already worn it three times this week and it’s holding up great in the chlorine
Chris Wells –
bought the yellow one for my wife and she’s a fan. definitely a head turner at the pool
becky r –
kinda small on the top part but the color is gorgeous
Sarah L. –
okay so this is definitely for the brave lol. it’s very minimal but the way it ties is super flattering on the hips. 10/10
maddie –
fits so good
Jordan P. –
got this for my girl for our lake house trip and it looks great. she says the material is actually pretty soft
haley –
the blue color is so much more vibrant in person than the pic shows i love how the thin strings let u adjust everything