String Bikini

Q: Do the String Bikinis run large?

These string bikinis run slightly large and feature fully adjustable ties, allowing you to customize the fit to your body. 👉 If you’re between sizes or prefer a more secure feel, we recommend sizing down .

Designed for swimming, snorkeling, and long ocean days.

Adjustable String Bikinis That Let You Control the Fit

Finding a string bikini that actually stays in place underwater shouldn’t feel impossible.

Our sustainable string bikinis are designed specifically for ocean movement — whether you're scuba diving, snorkeling, surfing, or traveling somewhere warm. Each piece is made using recycled materials and designed to stay secure under your wetsuit without digging in, shifting, or needing constant adjustment.

Unlike fast-fashion swimwear that stretches out or fades after a few trips, these bikinis are built for repeat ocean use. Durable fabrics, adjustable fits, and timeless ocean-inspired prints mean you can pack lighter and dive more — without constantly replacing your swimwear.

Fully adjustable fit

Four stylized blue wave shapes on a white background

Designed for Ocean Movement

For lighter ocean days - not heavy gear or long dives.

Whale Shark Icon Swimwear inspired by whale sharks

Between sizes? Size down.

CALYX Roots String Bikini

$79.00 USD

(4.9)

CALYX Roots String Bikini Top

$45.00 USD

(4.9)

Whale Shark Constellation String Bikini Top

$45.00 USD

(4.9)

CALYX Roots String Bikini Bottom

$39.00 USD

(4.9)

Shark Frenzy String Bikini Top

$45.00 USD

(4.9)

Shark Frenzy String Bikini Bottom

$39.00 USD

(4.9)

Jasmine Koi String Bikini

$79.00 USD

(4.9)

Whimsical Whale Shark String Bikini

$79.00 USD

(4.9)

Ocean Serenity String Bikini

$79.00 USD

(4.9)

Octopus Reef String Bikini Top

$45.00 USD

(4.9)

Electric Whale Shark String Bikini Bottom

$39.00 USD

(4.9)

Electric Whale Shark String Bikini Top

$45.00 USD

(4.9)

Whale Shark Constellation String Bikini Bottom

$39.00 USD

(4.9)

Whale Shark Constellation String Bikini

$79.00 USD

(4.9)

Octopus Ink String Bikini Top

$45.00 USD

(4.9)

Coral Blossoms String Bikini Top

$45.00 USD

(4.9)

Maldives String Bikini Top

$49.00 USD

(4.9)

Jasmine Koi String Bikini Bottom

$39.00 USD

(4.9)

Neon Shells String Bikini Top

$45.00 USD

(4.9)

Coral Blossoms String Bikini

$79.00 USD

(4.9)

Fire Corals String Bikini

$79.00 USD

(4.9)

Octopus Reef String Bikini Bottom

$39.00 USD

(4.9)

Octopus Reef String Bikini

$79.00 USD

(4.9)

Turquoise Seas String Bikini Top

$45.00 USD

(4.9)

Clownfish Gardens String Bikini Top

$45.00 USD

(4.9)

Octopus Ink String Bikini Bottom

$39.00 USD

(4.9)

Coral Blossoms String Bikini Bottom

$39.00 USD

(4.9)

Whimsical Whale Shark String Bikini Top

$45.00 USD

(4.9)

Whimsical Whale Shark String Bikini Bottom

$39.00 USD

(4.9)

Ocean Serenity String Bikini Top

$45.00 USD

(4.9)

Ocean Serenity String Bikini Bottom

$39.00 USD

(4.9)

Maldives String Bikini Bottom

$39.00 USD

(4.9)

Fire Corals String Bikini Top

$45.00 USD

(4.9)

Fire Corals String Bikini Bottom

$39.00 USD

(4.9)

Jasmine Koi String Bikini Top

$45.00 USD

(4.9)

Neon Shells String Bikini Bottom

$39.00 USD

(4.9)

Neon Shells String Bikini

$79.00 USD

(4.9)

Maldives String Bikini

$79.00 USD

(4.9)

Psychedelic Turtle String Bikini Bottom

$39.00 USD

(4.9)

Psychedelic Turtle String Bikini Top

$45.00 USD

(4.9)

Turquoise Seas String Bikini Bottom

$39.00 USD

(4.9)

Clownfish Gardens String Bikini Bottom

$39.00 USD

(4.9)

Octopus Ink String Bikini

$79.00 USD

(4.9)

Humpback Dreams String Bikini Bottom

$39.00 USD

(4.9)

Humpback Dreams String Bikini Top

$45.00 USD

(4.9)

Humpback Dreams String Bikini

$79.00 USD

(4.9)

Clownfish Gardens String Bikini

$79.00 USD

(4.9)

Shark Frenzy String Bikini

$79.00 USD

(4.9)

Frequently Asked Questions

Still deciding?

Do the String Bikinis run large?

These string bikinis run slightly large and feature fully adjustable ties, allowing you to customize the fit to your body.

👉 If you’re between sizes or prefer a more secure feel, we recommend sizing down.

How adjustable are the ties?

Each piece is fully adjustable at the neck, back, and hips, so you can fine-tune the fit for comfort, coverage, and movement. The long ties allow for styling multiple ways.

Does the string bikini stay secure in the water?

String bikinis offer flexibility and freedom of movement, making them suitable for swimming and snorkeling.

For high movement activities or wearing under a wetsuit, we recommend our Scuba Bikini styles instead.

How much coverage do the string bikinis provide?

Coverage is adjustable depending on how you tie the strings. These styles are designed for a lighter, more minimal feel compared to our Scuba Bikinis.

What if I’m unsure about sizing?

If you’re between sizes, prefer a snug fit, or plan to be active in the water, we recommend sizing down.

Still unsure? Contact us, we’re happy to help you find the right fit.

Coral reefs need our help!

Your purchase plants corals

Did you know that it is estimated that over 50% of coral reefs have been lost since the 1950s?

When we learned this heartbreaking statistic we knew we had to do something about it - so we created The Dive Compass, an ocean loving swimwear brand where YOUR purchase can actually make a difference. Each purchase plants corals in the heart of the Coral Triangle in Bali, Indonesia with the Livingseas Foundation.

Learn More

😊 love it

Fits under my wetsuit

Beautiful wish was a little longer to cover my stomach

Wonderful

I got this suit after many disappointing suits. This one fits well, feels secure, and doesn’t have cups or squeezing fabric or any of that stuff you don’t want when you’re diving. Can’t wait to get it in the ocean. For fit, I am 5’2” and 180 lbs.

This bikini fits my girlfriend so well it's poetry:
Waves lap, splash her curves
Ocean Serene bikini
Happy Wet Woman!

I would strongly recommend this bikini as a gift to anyone hoping to convince their girlfriend to move to the Caribbean to live, work, and play by the sea. Not just because of the robust construction of the swimsuit, but because of the excellent customer service experience you're in for with Andrea/The Dive Compass.

I'm obsessed with this new print

I love the colors, pattern, and the fit of this bikini! 10/10

Such a cute design! The fit is perfectly!

Perfect bottoms for diving!

I’m obsessed with my whale shark bikini! 🐋💙 The fabric is so soft, the fit is amazing, and it gives the perfect amount of support. I felt incredibly cute and confident wearing it — it covers exactly where it needs to while still feeling sexy and cute. Perfect for diving or just a beach day ! It’s easily my new favorite bikini! 🌊✨ Lo amo!!!

I love this swimsuit! It’s great quality

Very nice design and material. For diving in warm waters or under the wetsuit - but it's too cute to hide it ;-) The size runs quite big, you could choose the smaller one.

I love the bikini top. It's so comfortable, top quality and the design is very cute. I wear it with a normal black bottom and it looks very nice together.

Love the quality and design! So unique and fits great.

Beautiful! The quality and unique design are just what I needed. I love diving and wanted a rash guard that was not the typical mass produced look. I bought this design and love it so much, I will be on the lookout for new styles from this company. Awesome quality and comfortable too! Love it!

My favorite purchase as the fit is good and the print is pretty!

Comfortable, loose fit and awesome prints.

Pretty print! I think these will fit well under a wet suit. Take your time to really measure yourselves before ordering!

Very pretty and good quality top! Don't have a photo yet as I've not gone diving with it, but soon!

This is my third diving bikini I've purchased from the dive compass and I can't get enough!

I absolutely love these Bikinis! I'm stocking up for my liveabord in Egypt!

I am obsessed!!! This suit is sooo soft and so cute!!

This is a perfect rash guard!! Exactly what I was hoping for. It fit perfectly, is so well made and great quality material, protected me from the sun and sea critters, and looks so great!! Perfect for snorkeling or diving or any other water activity. Got tons of compliments and everyone kept asking me where I got it!! Was thrilled to tell them about this company, which donates 10% to ocean conservation! Will definitely be buying more!

The dive compass is a classy operation. I received a size M that was too small. Andrea was prompt in sending me return directions and getting a size L sent to me quickly (my dive trip was approaching). The fit was great and the customer service exceptional!

Hi Susan, thank you so much for your kind words! I'm thrilled to hear you had a great experience and that the size exchange worked out smoothly. I hope you enjoyed your dive trip!

Perfect love the shipping updates

Hi Christy! We're so glad you loved the shipping updates. Thanks for your wonderful review!

I really couldn't recommend shopping at The Dive Compass highly enough. Not only are the products beautifully designed and of amazing quality, but the customer service is incredible every step of the way. I wanted some advice about the sizing before ordering, and got helpful and quick responses that made sure that every piece fit wonderfully (even the bikini, and that can really be a challenge to order online). After I got my order, I had an issue with the rash guard, and I was promptly sent a replacement. I couldn't be happier about my purchases and the entire process, and I'll definitely come back to The Dive Compass the next time I need any swimwear or sporty beachwear!

Thank you for your wonderful review! I'm thrilled to hear you had a great experience and love your swimwear. Happy diving 🩵

This colorful gear is highly visible and great for open water swimming. Super cute!

Hi May, thank you for your wonderful feedback! I'm glad you love the gear and find it perfect for open water swimming. Stay safe and enjoy your swims!

These are awesome items for diving or just dressing in tropical climates. I actually bought a dress from The Dive Compass that I love to wear in the Florida sun. The fabric is great and the underwater themes are so fun they make you feel happy!

This is my second purchase with The Dive Compass. I love the quality and design of the bikinis and rashies. I get tons of compliments ever time I wear them.

Hi Paula, I'm thrilled to hear you love your bikinis and rashies! Thanks so much for your continued support and kind words. We look forward to your next visit!

Everyone keeps asking where I got my rash guards and bikinis - and they're amazing quality and a good thickness for diving!

I'm thrilled to hear you love the rash guards and bikinis. Thanks for sharing your experience and for spreading the word about The Dive Compass!

I LOVE my dive compass bikinis and rashguards! I'm a dive instructor so it is super important that my swimsuits are supportive and can hold up to swimming and being active. The dive compass absolutely nails it - the suits are cute, comfortable, & stay put. i also love the commitment to sustainability and protecting the reefs!

Thanks Megan, I'm so glad you love our swimwear!

The patterns are very beautiful

The patterns are very beautiful and the material is vibrant

Everything was smooth and easy

My swimsuit arrived quickly!

I can highly recommend these products!

As a Dive Instructor I need good quality and pay Attention to sustainability. I Love the Rashguards and Scuba Bikinis. The Material, Design and they fit well! I can highly recommend these products!

Thank you so much for your recommendation, happy to hear that the rash guards and Scuba Bikinis are perfect for diving!

Perfect customer service!

Delivery was fast and the quality is outstanding.

The items are good quality and extremely pretty!

The items are good quality and extremely pretty! The best things about this business is how it gives back to ocean conservation efforts - that's why I purchased from them. The customer service is top notch!

Excellent customer service and a user-friendly, intuitive website make for a seamless experience

Customer service was great!

This shop really needs more attention! This design is also just amazing! If you love the sea and leggings, these are a must-have! I study marine biology and these leggings are going to be one of my new favorites! There is a size chart to help you find the right size, but mine was so weird that I wasn't sure. So I wrote to the sales assistant directly and she recommended size S as the perfect fit (I'm 5'6', hips 95 cm and waist 71 cm). The leggings are washable at 30 degrees Celsius—that's all I need! I am completely satisfied and will probably order the other designs in time—I already have two! Sunny greetings from the Baltic Sea!

quick delivery , reasonable postage fees. I was expecting an order confirmation email, but didn't get one. I did get a shipment information though, a few days after I ordered, which included the order details.

Hi Verena, so glad you liked your order and it arrived quickly! That's soo helpful to know that the email order confirmation never arrived, we will get this fixed!

Shop by Collection

Woman in a blue bikini sitting on a paddleboard with snorkeling gear, surrounded by water and sky, woman is wearing scuba diving swimsuit designed for divers, the best bikini for scuba diving

Scuba Bikini

Calix Roots cropped rashy coral print on a coral-colored rash guard, perfect for sun protection while snorkeling or diving.

Rash Guards

Leggings

Woman wearing an octopus bikini and octopus shorts while standing on a sandy beach with the ocean in the background.

Breezy Swim Shorts

Woman wearing an ocean blue swimsuit standing on a beach with ocean waves in the background

One Piece Swimsuits

Women wearing a sea turtle bikini standing next to a paddle board in a body of water. Adjustable string bikini to find your perfect fit.

String Bikinis

Woman is wearing a whale shark cropped rashie or crop top rash guard and scuba bikini bottoms in whale shark print.

Women's Collection

Man holding a surfboard on a beach, wearing an octopus rash guard and whale shark swim trunks.

Men's Collection

Your order plants corals

Designed for your ocean adventures

Made from sustainable recycled fabrics, eco-friendly swimwear for scuba divers

Made to order = no excess waste

Easy returns, quality guaranteed

93%

(99)

(7)

(0)

Bought the shirt that matches the leggings. Looks and feels great. Should have a cover as pretty as the sea creatures.

Hi Peggy! I'm so glad you love the matching shirt and leggings, thanks for sharing! Happy diving!

I've bought other dive leggings before, and since I have curves, the fabric sometimes stretches thin and loses the fabric pattern. These were a pleasant surprise. They are so well-made! The fabric stays in place and is pliable and soft enough to move with my body without distorting or straining the fabric…or feeling like I’ve cut off circulation.

And it must be said…this fabric is simply gorgeous… almost like a watercolor painting. Stylish, super comfortable, and I have no doubt they will be incredibly functional in the water on my upcoming liveaboard to the Philippines!

Hi Cheryl, thank you so much for your wonderful review! I'm so happy to hear you love the design and fit of the leggings, and I hope they serve you well on your upcoming adventure. Happy diving!

This was my first order with Dive Compass, and I'm thrilled! I bought this rash guard and the matching leggings for an upcoming trip to the Philippines…hopefully good luck for whale shark sightings!

I was genuinely impressed with the quality of this top. It fit great and felt sturdier than similar items I've bought from other brands. I can't wait to put it to the test in the water!

Hi Cheryl, I'm so happy to hear you're thrilled with your first order! Wishing you the best of luck with the whale shark sightings in the Philippines, I hope your new rash guard serves you well. Thanks so much for choosing The Dive Compass!

I loved it! The quality was superior and the fit was perfect! I ordered three pieces…the bikini top, bottoms and shorts!

Hi Janet, I'm so happy to hear that you loved all three pieces you ordered, I hope you have some amazing dives wearing them!

Seems good quality and a good fit

Hi Don, thank you so much for your nice review and your support of Livingseas! Your donation shirt plants 18 coral fragments and donates one reef star structure to Livingseas Foundation to help reach the 500K corals planted goal! Your support means the world to us!

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String Bikini

Still deciding?

Let customers speak for us