![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
Victoria Cotton
AMAZING- wearing on land to keep warm
AMAZING- wearing on land to keep warm . Only comment leg cuff appears large .
ONYX THERMAL TIGHTS
luke parnemann
I’m loving my new pair of togs from Kozzi
I’m loving my new pair of togs from Kozzi. I swim laps daily and have had quite a few people ask me where I purchased them. Look forward to seeing other patterns that may come out. They fit nicely THANKYOU
GARRA BASIC JAMMER
Robyn Stonell
Correct fit for a long torso
Correct fit for a long torso.
I love the quality of the fabric, the colours and the cut…..
GARRA BASIC ONE PIECE
Kaylene Morris
Love the look and the feel
Love the look and the feel.
MAGGIE ROSE THERMAL FITTED RASHIE
Helen
Unexpected
Tights are generous size. I would go one size down from your usual.
I’m tall and tights are great.
ONYX THERMAL TIGHTS
Kaz Yum
love
love it
ONYX BLACK THERMAL FITTED RASHIE
Tonia Wood
Love the rashie
I love it! The rashie fits very well, is true to size and very warm.
MERMAID FITTED RASHIE
Anonymous
Getting More!
Great fit, look good and does help keep the chill out. I will be getting more.
FRANKII THERMAL FITTED RASHIE
Lara Askey
Great undergarment for scuba diving
I got a red and a blue version of the thermal vest and wore them under my 3 mm wetsuit while diving. They were perfect for a bit of extra warmth without having to add bulk or weight.
MAGGIE ROSE THERMAL FITTED RASHIE
Yuko
My daughter loves
My daughter loves it!!!!!
BLOOM XOVER ONE PIECE
Anonymous
Very comfortable
Very comfortable and warm
MAGGIE ROSE THERMAL FITTED RASHIE
Deborah Dunstone
Happy swims in my thermal
I actually have the blue floral one size 12. Love it but would prefer if the neckline was a little higher
MAGGIE ROSE THERMAL FITTED RASHIE
Anonymous
It fits well and keeps me warm in the pool during winter
It fits well and wor
MAGGIE ROSE THERMAL FITTED RASHIE
Anne Inglis
Loved the top
Loved the top. Fits nicely and looks great.
FRANKII THERMAL FITTED RASHIE
Janine Starch
Fantastic coverage - perfect for laps then
Fantastic coverage - perfect for laps then straight into the water at the beach! Im a size 8 (pretty small) but the sizing of your cozzies are SML (i got a 14)
KLASSIC RED BETH BOTTOM
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.