Ship To:

Free Shipping and Exchanges on orders $75 or more

Your Shopping Bag

It appears that your bag is currently empty!

Continue Shopping
Alex Bikini Top in Black - 1 - Onia
Alex Bikini Top in Black - 2 - Onia
Alex Bikini Top in Black - 3 - Onia
Alex Bikini Top in Black - 4 - Onia
Alex Bikini Top in Black - 5 - Onia
Alex Bikini Top in Black - 1 - Onia
Alex Bikini Top in Black - 2 - Onia
Alex Bikini Top in Black - 3 - Onia
Alex Bikini Top in Black - 4 - Onia
Alex Bikini Top in Black - 5 - Onia

Alex Bikini Top

Nylon Tricot & Rib Mesh


Size Guide


US Size Numeric Cup Bust Waist Hip
XS 00-0 A-B 31-32 24-25 34-35
S 2-4 B-C 33-34 25-27 36-37
M 6-8 C-D 35-36 28-29 38-39
L 10 D 37.5 30.5 40.5
XL 12 DD 39 32 42
Product Details

Designed in a classic balconette silhouette with an adjustable back closure, the Alex Bikini Top is a padded, underwired style, made in nylon tricot. The full-coverage top is paired with a sheer, ribbed-mesh overlay that features a high neck, a cutout back and tonal trims.


The Alex Bikini Top pairs well with the Sabrina Bikini Bottom.

  • Balconette silhouette
  • Adjustable back closure
  • Underwired
  • Full coverage
  • High neck
  • Cutout back
  • Tonal trim
  • Model measurements: Height 5’8" Bust 34" Waist 25" Hips 35”
  • Model wears size small
Fabric & Care
69% Polyester 25% Nylon 6% Spandex. Made from a smooth polyester blend, this Nylon Tricot combination pairs our classic swim fabric with sheer mesh, that’s been custom-textured with vertical ribbing. It’s durable despite its delicate appearance and infused with the perfect hint of stretch.
Hand wash cool water. Do not bleach. Do not tumble dry. Hang to dry. Do not iron.
Shipping & Returns

U.S. Shipping

FREE shipping on domestic orders $75 or more.

Expedited Shipping

Onia offers expedited shipping on domestic orders. 

Next Day Shipping with a shipping charge of $30

2-Day Expedited Shipping with a shipping charge of $15

Expedited orders must be placed by 2 PM EST to ship the same day. Orders placed after 2 PM EST or on weekends will ship the following business day. 

Please note we are not able to ship to P.O. boxes for expedited shipping orders. 

International Shipping

Duties, taxes and other customs fees are calculated based on the value of your purchase and your ship to address. The value will be automatically calculated and displayed at checkout. This charge is determined by local customs authorities in your country. All duties and taxes are non-refundable. 

The exact available shipping options for your country will be presented during checkout. 

Once your order has shipped, we estimate you will receive your package within 5-15 business days based on location. Please note we do not ship on weekends or US holidays. 

You will receive an order confirmation email from us after an order is placed. And once your order ships from our warehouse, you will receive a shipping confirmation email with tracking to your international address.


Onia offers returns for all full price merchandise for U.S. customers within 14 days of the delivery date. To initiate a return, please click here.

Products must be returned unworn, unwashed, in their original condition and with all tags and liners attached. We ask that you wear underwear when first trying-on your purchase, as we reserve the right to refuse returns that show any signs of wear.

International orders may not be exchanged.

All sale items marked "final sale" may not be returned or exchanged.