Welcome to the world of Billie Swim
At BILLIE SWIM, we embrace slow fashion — creating carefully crafted, high quality swimwear designed to last. We focus on producing pieces that stand the test of time — perfect for endless seasons of beach fun and effortless elegance.
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Billie's Classics
The Billie’s Classics line features timeless designs that never go out of...
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Biarritz Edit
Discover timeless sophistication with The Biarritz Edit, a collection inspired by the...
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The Ribbed Swim Edit
Discover timeless elegance with The Ribbed Swim Edit, a collection of swimwear...
We only use recycled polyamide from Italy
Our swimwear fabric is designed for durability and performance, offering chlorine resistance, bi-elasticity, pilling resistance, and UV protection, all while ensuring excellent coverage. Best of all, it’s crafted from 100% recycled polyamide, combining sustainability with premium quality.
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One Pieces
Our one-piece swimwear collection is designed with versatility, comfort, and confidence in...
Let customers speak for us
from 30 reviewsSuper cute and flattering! Also great service, the thon runs a little large in my opinion and Marjolein from Billie Swim was so helpful and fast to get me the right size.
This top gives my breasts the perfect lift! I have a smaller cup size, but it makes my boobs look full, lifted, and super flattering. I absolutely love the fit and how confident it makes me feel.
This is the perfect top I’ve been searching for for years! I’ve always struggled to find something with the right cup size that also fits around my waist—but with this top, you can adjust the tie for a perfect fit. Plus, it’s super practical: even when you lean forward, everything stays securely in place.
Highly recommend this brand! The swimsuit has a great fit with an elegant cut, made from a nice thick fabric. It’s perfect for women with larger busts—offering both support and a sexy look.
The fabric is beautiful and stays beautiful! The fit is great and accentuates a small waist
I feel sexy and sophisticated wearing this one piece. I have the cream color, and it doesn’t see through (maybe because of the double fabric?) even not when it is wet. So if you doubt the colour, no worries!
The shape of the one piece is beautiful. This piece is my fav to feel sophisticated and take a dip in a pool and meet friends.
I love the skirt. When I want a bit more coverage,(on my way to the beach for example). It combines great with the one piece, bikini or just a t-shirt.
This bottom part in combination with the Bari top is an absolute winner this summer. Love the classy yet quirky fit and I feel really great in it. Same as the top, the bottom dries really fast, which I love.
I love this top! It fits really well and doesn’t move when swimming and snorkeling. Also it dries really fast which is great!
This one piece feels is amazing! I feel great in it, instant confidence.
I bought the combination with the black & white top. I love it :) the bottom has a nice touch with the white and turned part on the left. The fitting is good and stays in place while walking and swimming.
I really like this bikini top! It fits well and stays perfectly in place, even while swimming. The secure fit makes it both comfortable and practical for active use. I also love the black and white color combination—it's simple and classic, but with a playful touch.
Love at first sight! This was exactly the one piece I dreamed of! It’s giving supermodels from the 90s, Pretty Woman, The parent trap.
The fit is amazing and the fabric is comfortabele and a bit shaping. The fabric is beautiful and shows quality. I cannot wait to put it on, it gives me so much confidence.
surprising excellent quality. Nice, thick and comfy fabric. at the beginning i was worry it might be too think and be a bit transparent, but not at all. Except use it as swim wear, I wore it very often as a top with a jeans. The shaping is outstand, giving me a hourglass shape.
Love the fit of the thong, it makes my butt look so great:).
We eliminated single use plastics
Our customers never receive anything packed in single use plastics. Billie Swim pieces are always delivered to you in a reusable pouch.
Billie Swim pieces are timeless, high quality and designed to last
Billie Swim is a slow fashion brand, our thoughtful designs transcend trends. We focus on creating pieces for endless seasons of beachside elegance.
Billie Swim is produced at a solar powered factory
Billie Swim swimwear is produced in Indonesia. The factory producing our collection is solar powered.
Fun fact: 90 seconds of sunlight = 2.5 hours of power for sewing machine = 1 Billie Swim bikini set.
Let's make waves together
By choosing Billie Swim, you're not just buying swimwear — you're joining a movement towards slow fashion, high quality goods that are designed to last.
The Billie Swim Blog
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Our First Pop-Up in Amsterdam Was a Dream – Tha...
The first-ever Billie Swim pop-up in Amsterdam was a huge success! It was such a joy to meet so many of you in person, share the collection, and soak up...
Our First Pop-Up in Amsterdam Was a Dream – Tha...
The first-ever Billie Swim pop-up in Amsterdam was a huge success! It was such a joy to meet so many of you in person, share the collection, and soak up...
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In Her Bikini: What Women Are Saying About Bill...
At Billie Swim, we believe a great bikini should feel like a second skin—comfortable, flattering, and confidence-boosting. But don’t just take our word for it. We’ve been blown away by...
In Her Bikini: What Women Are Saying About Bill...
At Billie Swim, we believe a great bikini should feel like a second skin—comfortable, flattering, and confidence-boosting. But don’t just take our word for it. We’ve been blown away by...
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Billie Swim Featured in Glamour UK!
We’re beyond excited to share some major news with our Billie Swim community — we’ve been featured in Glamour UK! 🎉 As a young and growing swimwear brand, being recognized...
Billie Swim Featured in Glamour UK!
We’re beyond excited to share some major news with our Billie Swim community — we’ve been featured in Glamour UK! 🎉 As a young and growing swimwear brand, being recognized...
Let's make waves together
By choosing Billie Swim, you're not just buying swimwear — you're joining a movement towards slow fashion, high quality goods that are designed to last.