Sustainable Swimwear Collections by Ui Swim

Bikini Bottoms

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    Discover Ui Swim’s sustainable bikini bottoms, designed in Helsinki with a focus on timeless Nordic style. From classic cuts to cheeky fits, our bikini bottoms are crafted to provide comfort, confidence, and a flattering silhouette for every body type.

    Ethically produced in Europe with durable, high-quality fabrics, Ui Swim bottoms are perfect to mix and match with our bikini tops, creating a swimwear set that’s uniquely yours.

    25 products
    Sale
    Picture of an Adjustable Cheeky Bikini Bottom in Black
    Picture of an Adjustable Cheeky Bikini set in Black
    Ava Tie Bottom in Black
    47,00 € 37,60 € Save 20%
    Sale
    Picture of an Adjustable Cheeky Bikini Bottom in White
    Picture of an Adjustable Cheeky Bikini set in White
    Ava Tie Bottom in White
    47,00 € 37,60 € Save 20%
    Ava Tie Bottom in Petrol Blue
    47,00 €
    Ava Tie Bottom in Raspberry Red
    47,00 €
    Sale
    Picture of a Mid Waist Bikini Bottom in Black
    Picture of a Mid Waist Bikini set in Black
    Ava Mid Waist Bottom in Black
    49,00 € 39,20 € Save 20%
    Sale
    Picture of a Mid Waist Bikini bottom in White
    Picture of a Mid Waist Bikini set in White
    Ava Mid Waist Bottom in White
    49,00 € 39,20 € Save 20%
    Ava Mid Waist Bottom in Petrol Blue
    49,00 €
    Ava Mid Waist Bottom in Raspberry Red
    49,00 €
    Sale
    Picture of an Adjustable Cheeky Bikini Bottom in Navy Blue
    Picture of an Adjustable Cheeky Bikini set in Navy Blue
    Ava Tie Bottom in Navy
    47,00 € 23,50 € Save 50%
    Sale
    Picture of an Adjustable Cheeky Bikini Bottom in Sage Green
    Picture of an Adjustable Cheeky Bikini set in Sage Green
    Ava Tie Bottom in Sage
    47,00 € 23,50 € Save 50%
    Sale
    Picture of a Reflective Bikini Bottom in Silver
    Picture of a Reflective Bikini set in Silver
    Aurora Reflective Tie Bottom in Silver
    74,00 € 37,00 € Save 50%
    Sale
    Picture of a Reflective Bikini Bottom in Pink
    Picture of a Reflective Bikini set in Pink
    Aurora Reflective Tie Bottom in Cold Rose
    74,00 € 37,00 € Save 50%
    Sale
    Ava V Bottom in Burnt Red
    47,00 € 23,50 € Save 50%
    Sale
    Ava V Bottom in Dusty Blue
    47,00 € 23,50 € Save 50%
    Sale
    Ava V Bottom in Sand
    47,00 € 23,50 € Save 50%
    Sale
    Picture of an Adjustable Mid Waist Bikini Bottom in Navy Blue
    Picture of an Adjustable Mid Waist Bikini set in Navy Blue
    Ava Double Strap Bottom in Navy
    49,00 € 29,40 € Save 40%
    Sale
    Picture of an Adjustable Mid Waist Bikini Bottom in Sage Green
    Picture of an Adjustable Mid Waist Bikini Bottom in Sage Green
    Ava Double Strap Bottom in Sage
    49,00 € 29,40 € Save 40%
    Sale
    Ava Double Strap Bottom in Burnt Red
    49,00 € 29,40 € Save 40%
    Sale
    Ava Double Strap Bottom in Dusty Blue
    49,00 € 29,40 € Save 40%
    Sale
    Ava Double Strap Bottom in Sand
    49,00 € 29,40 € Save 40%
    Sale
    Picture of a Mid Waist Bikini Bottom in Navy Blue
    Picture of a Mid Waist Bikini set in Navy Blue
    Ava Mid Waist Bottom in Navy
    49,00 € 24,50 € Save 50%
    Sale
    Picture of a Mid Waist Bikini Bottom in Sage Green
    Picture of an Adjustable Triangle Bikini set in Sage Green
    Ava Mid Waist Bottom in Sage
    49,00 € 24,50 € Save 50%
    Sale
    Ava High Waist Bottom in Burnt Red
    49,00 € 34,30 € Save 30%
    Sale
    Ava High Waist Bottom in Dusty Blue
    49,00 € 34,30 € Save 30%
    Sale
    Ava High Waist Bottom in Sand
    49,00 € 34,30 € Save 30%
    ★★★★★

    "Ui Swim's swimming shorts are the best I've ever owned, thanks to their high elasticity. I wear them constantly for other sports too, like bouldering."

    Rasmus R
    ★★★★★

    "The thick and supportive fabric is a game-changer. I don't even want to wear my old bikinis anymore!"

    Emma K
    ★★★★★

    "The fabric on these swimsuits is like a hug for your body. I feel incredibly comfortable and supported. Thank you!"

    Lotta H
    ★★★★★

    "The best bikinis ever <3"

    Marika S
    ★★★★★

    "I can't get enough of Ui Swim's one-pieces. They fit like a dream and make me feel so confident. I love wearing them as a top too!"

    Charlotta S