![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
Louise Piuze
Perfect
Perfect
CT HOT PINK ELITE BIND
Susan
Takes some of the stress out of potentially having to return online purchases
Takes some of the stress out of potentially having to return online purchases.
Free Unlimited Return for $3.50 Valid in AU.
James
Great comfortable swimwear with beautiful design and colours.
GARRA BASIC JAMMER
Linda
Third Kozii and prob my favourite. As soon as it arrived i nipped straight up to the pool and couldn’t believe that Kozii could improve the the costume so quickly. The fabric feels that it has a little more elasticity so the length fits perfectly. Love the black lining. Felt and looked great.
Price reflects the all round quality of the product, great value ❤️
MAGARRA XOVER ONE PIECE
Anonymous
Highly Recommended
I walk in the pool every morning and this rashie makes it so much more enjoyable as I don't feel the cold at all, I definitely recommend this Rashie. In fact when i first bought it, I wore it to a night time football match, I was so warm.
ONYX BLACK THERMAL FITTED RASHIE
Rubyst
My new fav bathers
The most supportive bathers. Colour is beautiful and coverage is awesome
MERMAID XOVER ONE PIECE
Deborah Battcher
Snug
Snug,cosy,great fit..comfy to swim ,paddle board,waka ama..Love it!5
FRANKII THERMAL FITTED RASHIE
Anonymous
Wore it first time today
Wore it first time today .Great fit and warm but not too warm to exercise in water in
MAGGIE ROSE THERMAL FITTED RASHIE
Rubyst
amazing product
fits so well and great material
LAGUNA RED XOVER ONE PIECE
Maryann Kilborn
I love it it is beautiful and fits lovely
I love it it is beautiful and fits lovely they are soo comfy to swim in I highly recommend
NGARRAN ELITE BIND ONE PIECE
Jill Martin
Amazing!
Amazing! It really does keep me warm!
ONYX BLACK THERMAL FITTED RASHIE
Stewart Collingwood
Great product
Great product, true to label
BLACK ELITE JAMMER
Anonymous
Love it so cute
Love it so cute . Could be a bit longer in the waist but very nice Thankyou
FRANKII THERMAL FITTED RASHIE
Deborah Battcher
Great fit
Great fit,easy to pull on .Cosy snug feel.Very happy..😀
ONYX THERMAL TIGHTS
Jade
LOVE my kozii swimsuit
LOVE my kozii swimsuit. This is my second pair I've bought. The fabric is high quality, fit is secure and flattering- perfect for training, diving and just playing around in the water. Colours bright and and vibrant. I love this brand and would buy again!
CT MILOS ELITE BIND ONE PIECE
Blog posts
Not Just for the Water — Why Kozii Thermals Are Your New Everyday Essential
Kozii Thermals were built for the water — but our customers are wearing them skiing, to work, and everywhere in between. Discover our 100% Australian-made women's thermal swimwear: chlorine-resistant Thermal Rashies and high-waisted Thermal Tights, crafted from Italian hydro-fleece fabric for warmth, comfort, and unrestricted movement.
Why We Made Swimwear for Long Torsos (And Why It Took Us This Long to Talk About It)
For too long, swimwear has been designed around one body. If you have a longer torso, you know the frustration — straps that dig in, fabric that pulls, a fit that never quite works. At Kozii, we went back to the drawing board to change that. Here's why we built our long torso fit, and how we did it.
Garra: The Depth Beneath the Surface
Garra Meaning deep water in Wiradjuri language, Garra honours the stillness, stories, and power beneath the surface. Chloe Saddler's second Kozii collection — available in the Racer, Xover One Piece, Elite Bind One Piece, and Basic Jammer.