Wilhelmina Bikini | Antonia Sinclair

BUNDLE & SAVE UP TO 25%

Wilhelmina Bikini

Wilhelmina Bikini

Wilhelmina Bikini

Wilhelmina Bikini

Wilhelmina Bikini

Wilhelmina Bikini

Wilhelmina Bikini

Wilhelmina Bikini

Wilhelmina Bikini

Wilhelmina Bikini

$69.95

Free shipping across the US

Easy 30 day returns

Secure checkout & protected payments

Colour

Black

Black/Cream

Size Size chart

S

M

L

Fit

Small Large

[{"id":60016681419086,"title":"Black \/ S","option1":"Black","option2":"S","option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":{"id":73204411269454,"product_id":15907858841934,"position":4,"created_at":"2026-07-02T05:07:24-05:00","updated_at":"2026-07-19T12:16:30-05:00","alt":null,"width":1200,"height":1800,"src":"\/\/antoniasinclair.com\/cdn\/shop\/files\/EMELIA_MIRA_BANDEAU_BIKINI_2.png?v=1784481390","variant_ids":[60016681419086,60016681484622,60016681517390]},"available":true,"name":"Wilhelmina Bikini - Black \/ S","public_title":"Black \/ S","options":["Black","S"],"price":6995,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":null,"featured_media":{"alt":null,"id":72650455515470,"position":4,"preview_image":{"aspect_ratio":0.667,"height":1800,"width":1200,"src":"\/\/antoniasinclair.com\/cdn\/shop\/files\/EMELIA_MIRA_BANDEAU_BIKINI_2.png?v=1784481390"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":60016681484622,"title":"Black \/ M","option1":"Black","option2":"M","option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":{"id":73204411269454,"product_id":15907858841934,"position":4,"created_at":"2026-07-02T05:07:24-05:00","updated_at":"2026-07-19T12:16:30-05:00","alt":null,"width":1200,"height":1800,"src":"\/\/antoniasinclair.com\/cdn\/shop\/files\/EMELIA_MIRA_BANDEAU_BIKINI_2.png?v=1784481390","variant_ids":[60016681419086,60016681484622,60016681517390]},"available":true,"name":"Wilhelmina Bikini - Black \/ M","public_title":"Black \/ M","options":["Black","M"],"price":6995,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":null,"featured_media":{"alt":null,"id":72650455515470,"position":4,"preview_image":{"aspect_ratio":0.667,"height":1800,"width":1200,"src":"\/\/antoniasinclair.com\/cdn\/shop\/files\/EMELIA_MIRA_BANDEAU_BIKINI_2.png?v=1784481390"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":60016681517390,"title":"Black \/ L","option1":"Black","option2":"L","option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":{"id":73204411269454,"product_id":15907858841934,"position":4,"created_at":"2026-07-02T05:07:24-05:00","updated_at":"2026-07-19T12:16:30-05:00","alt":null,"width":1200,"height":1800,"src":"\/\/antoniasinclair.com\/cdn\/shop\/files\/EMELIA_MIRA_BANDEAU_BIKINI_2.png?v=1784481390","variant_ids":[60016681419086,60016681484622,60016681517390]},"available":true,"name":"Wilhelmina Bikini - Black \/ L","public_title":"Black \/ L","options":["Black","L"],"price":6995,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":null,"featured_media":{"alt":null,"id":72650455515470,"position":4,"preview_image":{"aspect_ratio":0.667,"height":1800,"width":1200,"src":"\/\/antoniasinclair.com\/cdn\/shop\/files\/EMELIA_MIRA_BANDEAU_BIKINI_2.png?v=1784481390"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":60016681451854,"title":"Black\/Cream \/ S","option1":"Black\/Cream","option2":"S","option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":{"id":73204411302222,"product_id":15907858841934,"position":5,"created_at":"2026-07-02T05:07:24-05:00","updated_at":"2026-07-19T12:16:30-05:00","alt":null,"width":1200,"height":1800,"src":"\/\/antoniasinclair.com\/cdn\/shop\/files\/EMELIA_MIRA_BANDEAU_BIKINI_7.png?v=1784481390","variant_ids":[60016681451854,60016681550158,60016681582926]},"available":true,"name":"Wilhelmina Bikini - Black\/Cream \/ S","public_title":"Black\/Cream \/ S","options":["Black\/Cream","S"],"price":6995,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":null,"featured_media":{"alt":null,"id":72650455548238,"position":5,"preview_image":{"aspect_ratio":0.667,"height":1800,"width":1200,"src":"\/\/antoniasinclair.com\/cdn\/shop\/files\/EMELIA_MIRA_BANDEAU_BIKINI_7.png?v=1784481390"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":60016681550158,"title":"Black\/Cream \/ M","option1":"Black\/Cream","option2":"M","option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":{"id":73204411302222,"product_id":15907858841934,"position":5,"created_at":"2026-07-02T05:07:24-05:00","updated_at":"2026-07-19T12:16:30-05:00","alt":null,"width":1200,"height":1800,"src":"\/\/antoniasinclair.com\/cdn\/shop\/files\/EMELIA_MIRA_BANDEAU_BIKINI_7.png?v=1784481390","variant_ids":[60016681451854,60016681550158,60016681582926]},"available":true,"name":"Wilhelmina Bikini - Black\/Cream \/ M","public_title":"Black\/Cream \/ M","options":["Black\/Cream","M"],"price":6995,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":null,"featured_media":{"alt":null,"id":72650455548238,"position":5,"preview_image":{"aspect_ratio":0.667,"height":1800,"width":1200,"src":"\/\/antoniasinclair.com\/cdn\/shop\/files\/EMELIA_MIRA_BANDEAU_BIKINI_7.png?v=1784481390"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":60016681582926,"title":"Black\/Cream \/ L","option1":"Black\/Cream","option2":"L","option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":{"id":73204411302222,"product_id":15907858841934,"position":5,"created_at":"2026-07-02T05:07:24-05:00","updated_at":"2026-07-19T12:16:30-05:00","alt":null,"width":1200,"height":1800,"src":"\/\/antoniasinclair.com\/cdn\/shop\/files\/EMELIA_MIRA_BANDEAU_BIKINI_7.png?v=1784481390","variant_ids":[60016681451854,60016681550158,60016681582926]},"available":true,"name":"Wilhelmina Bikini - Black\/Cream \/ L","public_title":"Black\/Cream \/ L","options":["Black\/Cream","L"],"price":6995,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":null,"featured_media":{"alt":null,"id":72650455548238,"position":5,"preview_image":{"aspect_ratio":0.667,"height":1800,"width":1200,"src":"\/\/antoniasinclair.com\/cdn\/shop\/files\/EMELIA_MIRA_BANDEAU_BIKINI_7.png?v=1784481390"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}]

{"id":60016681419086,"title":"Black \/ S","option1":"Black","option2":"S","option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":{"id":73204411269454,"product_id":15907858841934,"position":4,"created_at":"2026-07-02T05:07:24-05:00","updated_at":"2026-07-19T12:16:30-05:00","alt":null,"width":1200,"height":1800,"src":"\/\/antoniasinclair.com\/cdn\/shop\/files\/EMELIA_MIRA_BANDEAU_BIKINI_2.png?v=1784481390","variant_ids":[60016681419086,60016681484622,60016681517390]},"available":true,"name":"Wilhelmina Bikini - Black \/ S","public_title":"Black \/ S","options":["Black","S"],"price":6995,"weight":0,"compare_at_price":null,"inventory_management":null,"barcode":null,"featured_media":{"alt":null,"id":72650455515470,"position":4,"preview_image":{"aspect_ratio":0.667,"height":1800,"width":1200,"src":"\/\/antoniasinclair.com\/cdn\/shop\/files\/EMELIA_MIRA_BANDEAU_BIKINI_2.png?v=1784481390"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}

Autumn offer — bundle & save

2 items10% OFF

3 items15% OFF

4 items20% OFF

Best value5 items25% OFF

Discount is applied automatically in your cart.

Wilhelmina brings relaxed shaping and clean detailing together in one bikini. The cut allows for natural movement, so it stays comfortable across a long day.

Works for warm-weather days, casual plans and evenings out with very little adjustment.

What You’ll Love About Wilhelmina

A comfortable, easy fit: Nothing to adjust once it is on
A versatile finish: Works for daytime plans and evening ones alike
A one-and-done silhouette: A complete look in a single piece

Specifications:

Style: Bikini
Fit: True to size, with a touch of stretch for a supportive fit
Wear: Everyday to occasion
Colours: Black, Black/Cream
Sizes: S, M, L

Shop TODAY ONLY with our exclusive discount while supplies last.

You may also like

Recently viewed

GRACEFUL DRESSES

Rose Bay Riverport Two-Piece

Estelle Maxi Dress

Romy Midi Dress

Margaux Maxi Dress

View all
100 products

The Fall Collection

Linen, florals, and easy silhouettes — chosen for harbour evenings and warm afternoons. Seasonal prices end with the season.

Bundle & Save up to 25%

Two pieces save you 10%. Five save you 25%. Applied automatically at checkout — no code needed.

BUILD YOUR BUNDLE

From Antonia's Desk

Chosen to Be Kept. Every piece in our collection is selected with one question in mind: will she want to keep it? Timeless cuts, easy fabrics, dresses made to be worn again and again