Welcome to the Reef

Fully adjustable, sustainable swimwear made to last you trip after trip.

Most wanted - The pieces everyone’s saving for their next trip.

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Quick buy
Aaliyah Sustainable Bikini Bottom — Chocolate
£42.00 GBP
Quick buy
Jasmine Two-Way Sustainable Bikini Top — Purple
£47.00 GBP
Quick buy
Jasmine Sustainable Bikini Bottom — Purple
£47.00 GBP
Quick buy
Saskia Sustainable Beach Top — Purple
£47.00 GBP
Quick buy
Aaliyah Sustainable Bikini Top — Chocolate Brown
£50.00 GBP
Quick buy
Aaliyah Sustainable Bikini Top — Purple
£50.00 GBP
Quick buy
Aaliyah Sustainable Bikini Bottom — Purple
£42.00 GBP
Quick buy
Ebru Sustainable Swimsuit — Red
£90.00 GBP

REEF SIREN

Swimwear that actually fits your body.



Free shipping over £120. Easy returns . Limited first drop

Shop The Drop
Designed to fit your body — adjustable, flattering, and made to last.

Best Sellers

Shop most wanted
Don’t just take our word for it …
I was cautious about trying a new brand at first, but the quality is UNREAL and my bikini fits perfectly! I'm 100% buying again!
— ISABELLA, LONDON
FINALLY a bikini with a top that FITS! 🙌🏼 My delivery was super quick and I've had so many compliments on my bikini!
— MASIE, HAMPSHIRE

Styled by you

Tag us @Castaway_Reef to be featured 📸

Shop Aaliyah
Shop Koren
Shop Jasmine Bikini
Shop Ebru
Sustainably made. Unapologetically seen.

Be bold, be seen. Be you

Not just swimwear - a feeling

Ebru Sustainable Swimsuit — Black
£90.00 GBP
Ebru Sustainable Swimsuit — Red
£90.00 GBP
Sustainably made. Unapologetically seen.

Be bold, be seen. Be you

Not just swimwear - a feeling
CASTAWAY REEF

Bikini Tops

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Swimsuits

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Bikini Bottoms

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Beach wear

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Follow us @Castaway_Reef

Our Promise

Better for the planet

Committed to sustainability from the ground up. From recycled packaging, fabrics, and even conscious production. Because we think swimwear should help clean up our waters, not pollute them.

Our Sustainability

The Koren bikini

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The Jasmine bikini

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The Ebru swimsuit

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@Castaway_Reef

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