![Person wearing a red floral long-sleeve thermal rash shirt on a beach [model_fit: Courtney wears Ladies 16 (L16)]](http://www.kozii.com/cdn/shop/files/2_6d2a9e96-1b1b-4aa3-8992-032f50fe7553_1024x1024.jpg?v=1777955152)
![Woman wearing a blue patterned swimsuit on a beach [model_fit: Ellie wears Ladies 10 (L10)]](http://www.kozii.com/cdn/shop/files/Oneapplication.You_llseewhy99_recommendit._7_1024x1024.jpg?v=1780025852)
![Woman wearing a pink swimsuit with white patterns and goggles, standing outdoors. [model_fit: Ellie wears Ladies 10 (L10)]](http://www.kozii.com/cdn/shop/files/19_f641356b-adcc-4007-9ff0-e79b49798314_1024x1024.png?v=1780040443)
KOZII SWIMWEAR ARE PROUD TO SUPPORT DIVING AUSTRALIA
![Woman in black thermal rashshirt outfit stretching outdoors with a clear blue sky. [model_fit: Ellie wears Ladies (L10)]](http://www.kozii.com/cdn/shop/files/26_26e34ac6-3bf9-4dad-a572-be0a1f68067f_1024x1024.png?v=1780041524)
Let customers speak for us
Shelly Douyere
I’m a size 18 usually
I’m a size 18 usually, but to get over my shoulders I went to a 20, still no go so I gave to my sister.
Went to the 24 & they are perfect. Cook Islands is going to look fabulous
LAGUNA RED XOVER ONE PIECE
Mrs Kelly A Taylor
Lovely pattern
Lovely pattern. Need to upsize due to small make.
MAGARRA XOVER ONE PIECE
Terry Kircher
comfortable wearing and looking sharp in the
comfortable wearing and looking sharp in the pool
Free Unlimited Return for $3.50 Valid in AU.
Anonymous
cheers
cheers, very happy and love the print😉🏄🏾
NALU RED BASIC JAMMER
Customer
Quality swimwear
These are the best swimwear I have bought. Perfect fit, so well made and the quality of the material is exceptional. I love them!!!!
FRANKII XOVER ONE PIECE
Anonymous
great quality
great quality and comfort
MAGARRA XOVER ONE PIECE
Anonymous
Fit well…but havent been able to use it due to
Fit well…but havent been able to use it due to medical reason!
NALU KHAKI BASIC JAMMER
Linda
Great investment. Fourth Kozzi, delivered (Aus to Uk) within a fotnight, bit worried about the cut and the length but it fits as well as the other three i have bought. Although i do agree that the sizing is off - i am not a uk 20 - prob a uk 16 but 5’10”, would prefer a bit more length in the next new fabrics. These bathers are outstanding and take alot of hammering with no sagging, chaffing nor fading. Very comfortable in aqua aerobics. The fabric designs are so beautiful, my dilemma is choosing between them!
NGARRAN XOVER ONE PIECE
Anonymous
Super comfortable
Super comfortable. Love the fabric.
LAGUNA RED XOVER ONE PIECE
Jo Lewis
Great fit and the shelf bra works a treat!
Great fit and the shelf bra works a treat for extra support and a streamlined look!
NGARRAN XOVER ONE PIECE
Eileen Searle
Love my new swim suit
Love my new swim suit. The quality is excellent and design is eye-catching. I have already had lots of compliments.
NGARRAN XOVER ONE PIECE
Belinda Edmondson
Great fit and beautiful
Great fit and beautiful print
NGARRAN XOVER ONE PIECE
Cathy McDonald
They’re great
They’re great, L12 is a good fit for me. Thanks for letting me exchange. Nice and tight and swimming faster already!
NGARRAN XOVER ONE PIECE
Barbara
Stunning colours and very comfortable. Stayed beautifully in place for the entire session.Will be back to shop in the future!
CT SPLICE PINE BERRY ELITE-X ONE PIECE
Michelle Callan
Great fit
fit and style are fantastic
ONYX THERMAL TIGHTS
Blog posts
Plus-Size Swimsuits for Larger Bodies: A Guide to Finding the Perfect Fit
A practical guide to finding plus-size swimsuits that actually fit well, feel supportive, and stay comfortable in the water. Learn what to look for in fabric, structure and design.
Chlorine-Resistant One-Piece Swimsuits: Are They Worth It?
Chlorine-resistant one-piece swimsuits are designed to last longer in the pool by resisting fading, stretching and fabric breakdown. Learn how they work, who they’re best for, and whether they’re worth the investment for regular swimmers.
Supportive Swimsuits for Larger Busts: How to Find Real Support
The most supportive swimsuits for larger busts have a built-in shelf bra or strong inner support layer, wider straps, a secure back (such as a crossover back), and full coverage through the bust and torso. A one-piece generally gives more support than a bikini. At Kozii, our full-coverage one-pieces offer shelf-bra options and a crossover Xover back designed to keep everything secure.