The Siena One Piece. Maximum Support. Zero Compromise.

 

The Siena is JAYD's most supportive one piece, featuring a wider back strap specifically designed for maximum bust security for athletes who need their suit to work as hard as they do. Built around stability and performance, it combines a fixed back design with mid-cheek coverage to keep everything in place through every lap, set, and session. Flattering, secure, and chlorine-resistant, it’s made for women who train consistently and need a suit that lasts season after season. With no adjusting or second-guessing, the Siena is ready for lap swimming, surf lifesaving, and ocean training—offering the support, durability, and confidence to simply show up, dive in, and perform.

 
JAYD Swimwear fixed back Siena one piece in the colour Acai. Athlete Kate has just been for a swim, so is showcasing the suit wet.

SIENA ONE PIECE - Acai

Acai $90.00 AUD

12 colours available

JAYD Swimwear fixed back Siena one piece in the colour Acai. Athlete Kate has just been for a swim, so is showcasing the suit wet.
Athlete Molly wears the Siena fixed-back one piece by JAYD Swimwear in the colour lilac haze. This piece offer mid coverage and it built for performance.
Athlete Sara wears the Siena one piece by JAYD Swiwmear. This one piece is chlorine resistant and built for performance. She is wearing the colour Mykonos.
Back view of athletic swimsuit Siena One Piece in Pink Sorbet by JAYD Swimwear
Back view of model wearing Siena One Piece Athletic Swimsuit in Atlantic green by JAYD Swimwear
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Athlete Molly wears the Siena fixed-back one piece by JAYD Swimwear in the colour lilac haze. This piece offer mid coverage and it built for performance.

SIENA ONE PIECE - Lilac Haze

Lilac Haze $90.00 AUD

12 colours available

JAYD Swimwear fixed back Siena one piece in the colour Acai. Athlete Kate has just been for a swim, so is showcasing the suit wet.
Athlete Molly wears the Siena fixed-back one piece by JAYD Swimwear in the colour lilac haze. This piece offer mid coverage and it built for performance.
Athlete Sara wears the Siena one piece by JAYD Swiwmear. This one piece is chlorine resistant and built for performance. She is wearing the colour Mykonos.
Back view of athletic swimsuit Siena One Piece in Pink Sorbet by JAYD Swimwear
Back view of model wearing Siena One Piece Athletic Swimsuit in Atlantic green by JAYD Swimwear
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Athlete Sara wears the Siena one piece by JAYD Swiwmear. This one piece is chlorine resistant and built for performance. She is wearing the colour Mykonos.

SIENA ONE PIECE - Mykonos

Mykonos $90.00 AUD

12 colours available

JAYD Swimwear fixed back Siena one piece in the colour Acai. Athlete Kate has just been for a swim, so is showcasing the suit wet.
Athlete Molly wears the Siena fixed-back one piece by JAYD Swimwear in the colour lilac haze. This piece offer mid coverage and it built for performance.
Athlete Sara wears the Siena one piece by JAYD Swiwmear. This one piece is chlorine resistant and built for performance. She is wearing the colour Mykonos.
Back view of athletic swimsuit Siena One Piece in Pink Sorbet by JAYD Swimwear
Back view of model wearing Siena One Piece Athletic Swimsuit in Atlantic green by JAYD Swimwear
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Back view of athletic swimsuit Siena One Piece in Pink Sorbet by JAYD Swimwear

SIENA ONE PIECE - Pink Sorbet

Pink Sorbet $90.00 AUD

12 colours available

JAYD Swimwear fixed back Siena one piece in the colour Acai. Athlete Kate has just been for a swim, so is showcasing the suit wet.
Athlete Molly wears the Siena fixed-back one piece by JAYD Swimwear in the colour lilac haze. This piece offer mid coverage and it built for performance.
Athlete Sara wears the Siena one piece by JAYD Swiwmear. This one piece is chlorine resistant and built for performance. She is wearing the colour Mykonos.
Back view of athletic swimsuit Siena One Piece in Pink Sorbet by JAYD Swimwear
Back view of model wearing Siena One Piece Athletic Swimsuit in Atlantic green by JAYD Swimwear
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Back view of model wearing Siena One Piece Athletic Swimsuit in Atlantic green by JAYD Swimwear

SIENA ONE PIECE - Atlantic

Atlantic $90.00 AUD

12 colours available

JAYD Swimwear fixed back Siena one piece in the colour Acai. Athlete Kate has just been for a swim, so is showcasing the suit wet.
Athlete Molly wears the Siena fixed-back one piece by JAYD Swimwear in the colour lilac haze. This piece offer mid coverage and it built for performance.
Athlete Sara wears the Siena one piece by JAYD Swiwmear. This one piece is chlorine resistant and built for performance. She is wearing the colour Mykonos.
Back view of athletic swimsuit Siena One Piece in Pink Sorbet by JAYD Swimwear
Back view of model wearing Siena One Piece Athletic Swimsuit in Atlantic green by JAYD Swimwear
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Back view of athletic swimsuit Siena One Piece in Fiesta by JAYD Swimwear

SIENA ONE PIECE - Fiesta

Fiesta $90.00 AUD

12 colours available

JAYD Swimwear fixed back Siena one piece in the colour Acai. Athlete Kate has just been for a swim, so is showcasing the suit wet.
Athlete Molly wears the Siena fixed-back one piece by JAYD Swimwear in the colour lilac haze. This piece offer mid coverage and it built for performance.
Athlete Sara wears the Siena one piece by JAYD Swiwmear. This one piece is chlorine resistant and built for performance. She is wearing the colour Mykonos.
Back view of athletic swimsuit Siena One Piece in Pink Sorbet by JAYD Swimwear
Back view of athletic swimsuit Siena One Piece in Fiesta by JAYD Swimwear
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Back strap view of athletic swimsuit Siena One Piece in Navy by JAYD Swimwear

SIENA ONE PIECE - Navy

Navy $90.00 AUD

12 colours available

JAYD Swimwear fixed back Siena one piece in the colour Acai. Athlete Kate has just been for a swim, so is showcasing the suit wet.
Athlete Molly wears the Siena fixed-back one piece by JAYD Swimwear in the colour lilac haze. This piece offer mid coverage and it built for performance.
Athlete Sara wears the Siena one piece by JAYD Swiwmear. This one piece is chlorine resistant and built for performance. She is wearing the colour Mykonos.
Back view of athletic swimsuit Siena One Piece in Pink Sorbet by JAYD Swimwear
Back strap view of athletic swimsuit Siena One Piece in Navy by JAYD Swimwear
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Side view of athletic swimsuit Siena One Piece in Cobalt Blue by JAYD Swimwear

SIENA ONE PIECE - Cobalt

Cobalt $90.00 AUD

12 colours available

JAYD Swimwear fixed back Siena one piece in the colour Acai. Athlete Kate has just been for a swim, so is showcasing the suit wet.
Athlete Molly wears the Siena fixed-back one piece by JAYD Swimwear in the colour lilac haze. This piece offer mid coverage and it built for performance.
Athlete Sara wears the Siena one piece by JAYD Swiwmear. This one piece is chlorine resistant and built for performance. She is wearing the colour Mykonos.
Back view of athletic swimsuit Siena One Piece in Pink Sorbet by JAYD Swimwear
Side view of athletic swimsuit Siena One Piece in Cobalt Blue by JAYD Swimwear
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Side view of athletic swimsuit Siena One Piece in Ruby Red by JAYD Swimwear

SIENA ONE PIECE - Ruby

Ruby $90.00 AUD

12 colours available

JAYD Swimwear fixed back Siena one piece in the colour Acai. Athlete Kate has just been for a swim, so is showcasing the suit wet.
Athlete Molly wears the Siena fixed-back one piece by JAYD Swimwear in the colour lilac haze. This piece offer mid coverage and it built for performance.
Athlete Sara wears the Siena one piece by JAYD Swiwmear. This one piece is chlorine resistant and built for performance. She is wearing the colour Mykonos.
Back view of athletic swimsuit Siena One Piece in Pink Sorbet by JAYD Swimwear
Side view of athletic swimsuit Siena One Piece in Ruby Red by JAYD Swimwear
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Front view of athletic swimsuit Siena One Piece in Cove Green by JAYD Swimwear

SIENA ONE PIECE - Cove

Cove $90.00 AUD

12 colours available

JAYD Swimwear fixed back Siena one piece in the colour Acai. Athlete Kate has just been for a swim, so is showcasing the suit wet.
Athlete Molly wears the Siena fixed-back one piece by JAYD Swimwear in the colour lilac haze. This piece offer mid coverage and it built for performance.
Athlete Sara wears the Siena one piece by JAYD Swiwmear. This one piece is chlorine resistant and built for performance. She is wearing the colour Mykonos.
Back view of athletic swimsuit Siena One Piece in Pink Sorbet by JAYD Swimwear
Front view of athletic swimsuit Siena One Piece in Cove Green by JAYD Swimwear
+7
 
Back view of athletic swimsuit Siena One Piece in Black by JAYD Swimwear

SIENA ONE PIECE - Black

Black $90.00 AUD

12 colours available

JAYD Swimwear fixed back Siena one piece in the colour Acai. Athlete Kate has just been for a swim, so is showcasing the suit wet.
Athlete Molly wears the Siena fixed-back one piece by JAYD Swimwear in the colour lilac haze. This piece offer mid coverage and it built for performance.
Athlete Sara wears the Siena one piece by JAYD Swiwmear. This one piece is chlorine resistant and built for performance. She is wearing the colour Mykonos.
Back view of athletic swimsuit Siena One Piece in Pink Sorbet by JAYD Swimwear
Back view of athletic swimsuit Siena One Piece in Black by JAYD Swimwear
+7
 
JAYD Swimwear athlete Elyse wears the fixed back Siena one piece in the colour cinnamon, this piece is made from chlorine resistant material and offers a supportive, flattering fit.

SIENA ONE PIECE - Cinnamon

Cinnamon $90.00 AUD

12 colours available

JAYD Swimwear fixed back Siena one piece in the colour Acai. Athlete Kate has just been for a swim, so is showcasing the suit wet.
Athlete Molly wears the Siena fixed-back one piece by JAYD Swimwear in the colour lilac haze. This piece offer mid coverage and it built for performance.
Athlete Sara wears the Siena one piece by JAYD Swiwmear. This one piece is chlorine resistant and built for performance. She is wearing the colour Mykonos.
Back view of athletic swimsuit Siena One Piece in Pink Sorbet by JAYD Swimwear
JAYD Swimwear athlete Elyse wears the fixed back Siena one piece in the colour cinnamon, this piece is made from chlorine resistant material and offers a supportive, flattering fit.
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  • 100% PBT chlorine-proof lining that outlasts training
  • Athletic compression that supports and flatters
  • Secure fit designed for active movement
  • Premium Italian Eco fabric with lasting shape and stretch
  • Built for pool, surf, ocean sport and everything in between

Designed for active women who train hard and spend long hours in chlorine and saltwater. Combining a secure, flattering fit with the kind of durability that actually holds up. No bagging, no fading, no suits that look tired after a month of training. Built to move with you — lap after lap, session after session, season after season.

Yes. Every piece of JAYD Swimwear is made with 100% PBT chlorine-proof lining and premium Italian Eco fabric. This means it resists fading, stretching and shape loss even with repeated exposure to chlorine and saltwater — built for women who train regularly and need their swimwear to last.

This collection is designed for active water athletes including lap swimmers, surf lifesavers, water polo players and ocean athletes. The secure fit, athletic compression and chlorine-resistant construction make it suitable for both training and competition in pool and ocean environments.