Women Bags Shoes Beauty Jewelry Men Kids Home Offers Sale Editors' Blog

Onia One Piece Swimsuits For Women

30 Products
Save This Search
Brands 1 Stores
Colors Price
Size
Sort
×

Onia Allie strapless one-piece - women - Nylon/Spandex/Elastane - XS Onia Allie strapless one-piece - women - Nylon/Spandex/Elastane - XS

Deep navy and white Allie strapless one-piece from Onia. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Arianna swimsuit - women - Nylon/Spandex/Elastane - XS Onia Arianna swimsuit - women - Nylon/Spandex/Elastane - XS

Black Arianna swimsuit from Onia. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Kelly swimsuit - women - Nylon/Spandex/Elastane - XS Onia Kelly swimsuit - women - Nylon/Spandex/Elastane - XS

Multicolour Kelly swimsuit from Onia. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Kelly swimsuit - women - Nylon/Spandex/Elastane - XS Onia Kelly swimsuit - women - Nylon/Spandex/Elastane - XS

Purple Kelly swimsuit from Onia. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Athena swimsuit - women - Nylon/Spandex/Elastane - XS Onia Athena swimsuit - women - Nylon/Spandex/Elastane - XS

Blue Athena swimsuit from Onia. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Isabella swimsuit - women - Nylon/Spandex/Elastane - XS Onia Isabella swimsuit - women - Nylon/Spandex/Elastane - XS

White Isabella swimsuit from Onia. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Kelly swimsuit - women - Nylon/Spandex/Elastane - XS Onia Kelly swimsuit - women - Nylon/Spandex/Elastane - XS

Red Kelly swimsuit from Onia. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Athena swimsuit - women - Nylon/Spandex/Elastane - XS Onia Athena swimsuit - women - Nylon/Spandex/Elastane - XS

Black and white Athena swimsuit from Onia. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia 'Nina Halter' one-piece - women - Nylon/Spandex/Elastane - XS Onia 'Nina Halter' one-piece - women - Nylon/Spandex/Elastane - XS

Black 'Nina Halter' one-piece from Onia featuring a tie fastening, a scoop neck and a low scoop back. This item is true to fit. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Nina halter one-piece - women - Nylon/Spandex/Elastane - XS Onia Nina halter one-piece - women - Nylon/Spandex/Elastane - XS

Deep royal purple Nina halter one-piece from Onia. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia 'Kelly' swimsuit - women - Nylon/Spandex/Elastane - XS Onia 'Kelly' swimsuit - women - Nylon/Spandex/Elastane - XS

The 'Kelly' is a modern take on swimwear's most classic style. Hidden seams create a swimsuit that smoothly contours the body. The low scoop back adds to its timeless appeal. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Kelly swimsuit - women - Nylon/Spandex/Elastane - XS Onia Kelly swimsuit - women - Nylon/Spandex/Elastane - XS

Orange Kelly swimsuit from Onia. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia 'Kelly' swimsuit - women - Nylon/Spandex/Elastane - XS Onia 'Kelly' swimsuit - women - Nylon/Spandex/Elastane - XS

Black 'Kelly' swimsuit from Onia featuring a round neck and a scoop back. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Isabella swimsuit - women - Nylon/Spandex/Elastane - XS Onia Isabella swimsuit - women - Nylon/Spandex/Elastane - XS

Black and white Isabella swimsuit from Onia. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Athena swimsuit - women - Nylon/Spandex/Elastane - XS Onia Athena swimsuit - women - Nylon/Spandex/Elastane - XS

Black Athena swimsuit from Onia. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Kelly swimsuit - women - Nylon/Polyester/Spandex/Elastane - XS Onia Kelly swimsuit - women - Nylon/Polyester/Spandex/Elastane - XS

Blue Kelly swimsuit from Onia. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Kelly swimsuit - women - Nylon/Spandex/Elastane - XS Onia Kelly swimsuit - women - Nylon/Spandex/Elastane - XS

Our essential one piece, the Kelly is an up-to-date approach on swimwear’s most classic style. Featuring a low scoop back and hidden seams, this combination allows for a smooth contouring to the body and a timeless appeal. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Nina swimsuit - women - Nylon/Spandex/Elastane - XS Onia Nina swimsuit - women - Nylon/Spandex/Elastane - XS

Salmon Nina swimsuit from Onia. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Kelly swimsuit - women - Nylon/Spandex/Elastane - XS Onia Kelly swimsuit - women - Nylon/Spandex/Elastane - XS

Multicolour Kelly swimsuit from Onia. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Allie strapless one-piece - women - Nylon/Spandex/Elastane - XS Onia Allie strapless one-piece - women - Nylon/Spandex/Elastane - XS

Deep royal purple Allie strapless one-piece from Onia. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Isabella swimsuit - women - Nylon/Spandex/Elastane - XS Onia Isabella swimsuit - women - Nylon/Spandex/Elastane - XS

Blue Isabella swimsuit from Onia. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Kelly swimsuit - women - Nylon/Spandex/Elastane - XS Onia Kelly swimsuit - women - Nylon/Spandex/Elastane - XS

Orange and white Kelly swimsuit from Onia. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Nina halter one-piece - women - Nylon/Spandex/Elastane - XS Onia Nina halter one-piece - women - Nylon/Spandex/Elastane - XS

Multicolored Nina halter one-piece from Onia. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Kelly swimsuit - women - Nylon/Spandex/Elastane - XS Onia Kelly swimsuit - women - Nylon/Spandex/Elastane - XS

Blue Kelly swimsuit from Onia. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Nina swimsuit - women - Nylon/Spandex/Elastane - XS Onia Nina swimsuit - women - Nylon/Spandex/Elastane - XS

Multicolour Nina swimsuit from Onia. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Arianna swimsuit - women - Nylon/Spandex/Elastane - S Onia Arianna swimsuit - women - Nylon/Spandex/Elastane - S

Red Arianna swimsuit from Onia. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Arianna swimsuit - women - Nylon/Spandex/Elastane - XS Onia Arianna swimsuit - women - Nylon/Spandex/Elastane - XS

White Arianna swimsuit from Onia. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Allie strapless one-piece - women - Nylon/Spandex/Elastane - XS Onia Allie strapless one-piece - women - Nylon/Spandex/Elastane - XS

Black Allie strapless one-piece from Onia. Swimwear must be tried on over your own garments.

Get Sale Alert

Onia Nina Halter Onia Nina Halter

Carefully crafted down to the finest detail, nothing is overlooked in Onia's pursuit to produce well-made, trend-transcending swimwear. Made from a fabric chosen for its soft feel and quick-drying properties, the Nina halter is a sleek and sexy one-piece with a plunging V-neck, low scoop back, and hidden seaming for a smooth, second-skin fit. Nylon/spandex Moderate coverage Deep-V neck; adjustable tie at neck; low scoop back Fully lined By Onia Hand wash Imported

Get Sale Alert

Onia Isabelle One-Piece Onia Isabelle One-Piece

Simple yet carefully crafted to the most minute detail, nothing is overlooked in Onia's pursuit to produce well-made, trend-transcending swimwear. Made from a fabric chosen for its soft feel and quick-drying properties, the Isabelle features vertical seams for a second-skin fit and a figure-enhancing corset-like molding at the bust for the ultimate in understated femininity. Nylon/spandex Full coverage Princess seaming at front and back; lightly padded cups with dart details; underwire at the bust; adjustable straps Fully lined By Onia Hand wash Imported

Get Sale Alert