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Person wearing a black bikini and large sun hat against a bright blue sky.

Not a miracle...

Woman in black bikini standing on a white staircase against a blue sky

Just made for YOU.

Rethinking Swimwear

Our bodies are constantly changing, but we never stop being ourselves. We deserve swimwear that embraces the natural changes of our amazing, capable bodies while allowing us to express ourselves fully & comfortably...

Two women wearing matching swim outfits with a plain background

20 pieces, 100+ looks

We understand swimwear is not ‘one size fits all.’ Our collection is comprised of interchangeable & customizable pieces that allow the wearer to build their own “Swim Outfit” to fit their individual needs.

Woman wearing a maroon swimsuit with a beige background

Engineered Comfort & Fit

This isn’t shapewear, nor is it flat pieces of fabric. All of our pieces include contouring that follows a woman’s natural shape. No more squeezing or riding up- just smoothing comfort you’ll want to live in.

Create your perfect 'Swim Outfit'

Base Swim Tops

Mature woman wearing a black two-piece bikini set: a swim top with wide straps and wide scoop neck & high-waisted swim bottoms with center mesh twist panel

Base Swim Bottoms

Mature woman wearing a black and white geometric printed tie top one piece swimsuit with matching custom swim top

One Pieces

Layering Tops

Layering Bottoms

Layering Dresses

A mature woman lounging on a pool float in a pool

rich radiance

The Sunset Collection

Rich, warm tones brighten the skin, while painted stripes draw the eye in all the right places. Luxurious Bordo masks like traditional black, yet is softer on the skin.

Shop the Collection
Mature woman wearing a burgundy, peach and blue stripe printed wrap top one piece swimsuit with matching custom swim top
Made to Order

The Infinity One Piece

$248.00

6 colors, 5 sizes
  • Black Geo
  • Sunset
  • Sea Marble
  • +1 more
  • XS
  • S
  • M
  • L
  • XL
Mesh Top One Piece
Made to Order

Mesh Top One Piece

$258.00

6 colors, 5 sizes
  • Black Geo
  • Sunset
  • Sea Marble
  • +1 more
  • XS
  • S
  • M
  • L
  • XL
The Scoop Swim Bra
Made to Order

The Scoop Swim Bra

$175.00

3 colors, 5 sizes
  • XS
  • S
  • M
  • L
  • XL
The Plunge Swim Bra
Made to Order
Best Seller

The Plunge Swim Bra

$178.00

3 colors, 4 sizes
  • 0
  • 1
  • 2
  • 4A
Woman wearing a burgundy swimsuit with a plain background
Made to Order

The Swim Bra

$188.00

3 colors, 6 sizes
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
High Cut Twist Bottoms
Made to Order
Best Seller

High Cut Twist Bottoms

$158.00

3 colors, 5 sizes
  • XS
  • S
  • M
  • L
  • XL

The Sunset Collection

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Get the look

Woman wearing a colorful outfit standing against a white brick wall.

Get the look

Mesh Top One Piece

Mesh Top One Piece

$258.00
The Plunge Swim Bra

The Plunge Swim Bra

$178.00
Mesh Drawcord Joggers

Mesh Drawcord Joggers

$268.00
Mesh Top One Piece

Mesh Top One Piece

$258.00
The Plunge Swim Bra

The Plunge Swim Bra

$178.00
Mesh Drawcord Joggers

Mesh Drawcord Joggers

$268.00
Woman wearing a sheer top and blue swim bottoms on a beige background

Cool Luxury

The Sea Marble Collection

Sea Marble takes us to the depths of the ocean, flowing abstractly like its currents. Deep Blue Stone grounds our palette and offers yet another alternative to black that looks radiant on most skin tones.

Shop the Collection
Mature woman wearing a light teal & tan marble printed wrap top one piece swimsuit with matching custom swim top
Made to Order

The Infinity One Piece

$248.00

6 colors, 5 sizes
  • Black Geo
  • Sunset
  • Sea Marble
  • +1 more
  • XS
  • S
  • M
  • L
  • XL
Mesh Top One Piece
Made to Order

Mesh Top One Piece

$258.00

6 colors, 5 sizes
  • Black Geo
  • Sunset
  • Sea Marble
  • +1 more
  • XS
  • S
  • M
  • L
  • XL
Larger mature woman wearing a dark blue-gray, high-waist two-piece bikini set on a beige background
Made to Order

The Swim Bra

$188.00

3 colors, 6 sizes
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
The Plunge Swim Bra
Made to Order
Best Seller

The Plunge Swim Bra

$178.00

3 colors, 4 sizes
  • 0
  • 1
  • 2
  • 4A
The Scoop Swim Bra
Made to Order

The Scoop Swim Bra

$175.00

3 colors, 5 sizes
  • XS
  • S
  • M
  • L
  • XL
High Cut Twist Bottoms
Made to Order
Best Seller

High Cut Twist Bottoms

$158.00

3 colors, 5 sizes
  • XS
  • S
  • M
  • L
  • XL

Sea Marble

View all

Classic Elegance

The Black Geo Collection

Black & White combine to create a classic look. Geometric shapes add an edge to timeless silhouettes, nodding to our past and embracing the new.

Shop the Collection
Mature woman wearing a black and white geometric printed tie top one piece swimsuit with matching custom swim top
Made to Order

The Infinity One Piece

$248.00

6 colors, 5 sizes
  • Black Geo
  • Sunset
  • Sea Marble
  • +1 more
  • XS
  • S
  • M
  • L
  • XL
Mesh Top One Piece
Made to Order

Mesh Top One Piece

$258.00

6 colors, 5 sizes
  • Black Geo
  • Sunset
  • Sea Marble
  • +1 more
  • XS
  • S
  • M
  • L
  • XL
Mature woman wearing a black two-piece bikini set: a swim top with wide straps and wide scoop neck & high-waisted swim bottoms with center mesh twist panel
Made to Order

The Scoop Swim Bra

$175.00

3 colors, 5 sizes
  • XS
  • S
  • M
  • L
  • XL
The Plunge Swim Bra
Made to Order
Best Seller

The Plunge Swim Bra

$178.00

3 colors, 4 sizes
  • 0
  • 1
  • 2
  • 4A
Woman wearing a black bikini set against a beige background
Made to Order

The Swim Bra

$188.00

3 colors, 6 sizes
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
Mature woman wearing a black two-piece bikini set: a swim top with wide straps and wide scoop neck & high-waisted swim bottoms with center mesh twist panel
Made to Order
Best Seller

High Cut Twist Bottoms

$158.00

3 colors, 5 sizes
  • XS
  • S
  • M
  • L
  • XL

Black Geo

View all

"The [pieces] are perfect! My husband said it's probably the best suit he's seen me wear in a long time."
– Rachel

“Went to the grocery store in my jogger set. Two girls said they LOVED my outfit. Sure was an ego booster!”
– Liz

“My favorite outfit! So nice to have a suit that covers (and flatters) my butt for once.”
– Chantee

Our Story

My name is Sarah Blaser and this is my mom, Donna.

SEROTONE SWIM was inspired by my mother’s experience with menopause. She’s also the reason I became a designer.

Learn More

Stephan Rabimov

"As its name suggests, Serotone Swim is dedicated to making women feel good in their swimwear—no matter their age or shape. After witnessing her mother struggle to find flattering swimwear while going through menopause, founder Sarah Blaser wanted to create a brand that celebrates women’s diverse and ever-changing bodies without compromising on style or sustainability. Her debut collection for Miami Swim Week delivered on that promise, with flattering cuts and tasteful cover-ups in vibrant yet sophisticated prints."

View Article

OK! Staff

"...Serotone Swim, HeartGlass, and Californium Supply Co. took over the runway with these standout designers showcasing eye-catching, print-forward swim and resortwear collections that celebrated individuality, movement, and modern beach glamour."

View Article

Made to Order

Receive your order 6 weeks from placement

Easy Returns

Returns & exchanges accepted within 14 days of delivery

Sustainable Materials

Our printed mesh is made of recycled bottles!

Fit Experts

Chat with one of our experts to help you find your perfect fit