Serene Up to A DD Extended Tri
- Free express shipping in Australia
- Carbon neutral delivery in sustainable packaging
- This product is eligible for easy online returns
- In stock, ready to ship from our Sydney HQ

The Serene up to a DD Extended Tri Bikini top is suitable for a fuller bust with a half underwire and wider side bust coverage.
- Elastic trim at the neckline
- A fuller cup capacity up to a DD Cup bust
- Half underwires
- Soft optional removable cups
- Adjustable wider rubber straps
- M&L clip back closure
- Fully lined in our Recycled Body Sculpting silky touch lining
Our model is wearing a size 10 bikini top and bikini pant. She is 177cm, has an 81cm bust, 92cm hips, and a 63cm waist and could wear either an 8 or 10.
At Monte & Lou we have used our extensive experience to create swimsuits that fit and flatter everyone. Our chart below allows you to identify your size more easily.
Size (cm) | 8 | 10 | 12 | 14 | 16 |
Bust | 81-83 | 86-88 | 91-93 | 96-98 | 101-103 |
Underbust | 66-68 | 71-73 | 76-78 | 81-83 | 86-88 |
Waist | 61-63 | 66-68 | 71-73 | 76-78 | 81-83 |
Hip | 91-93 | 96-98 | 101-103 | 106-108 | 111-113 |
Cup Sizing | |||||
A Cup | 78-80 | 83-85 | 88-90 | 93-95 | 98-100 |
B/C Cup | 81-83 | 86-88 | 91-93 | 96-98 | 101-103 |
D Cup | 84-86 | 89-91 | 94-96 | 99-101 | 104-106 |
DD/E Cup | 87-89 | 92-94 | 97-99 | 102-104 | 107-109 |
F Cup | 90-92 | 95-97 | 100-102 | 105-107 | 110-112 |
If you have a specific sizing question, please message us and we would be happy to help.
Exclusive Main Fabric: 85% Recycled Nylon, 15% Elastane
Exclusive Lining: 85% Recycled Nylon, 15% Elastane
To ensure correct care, please refer to the individual instructions on each product. Rinse your swimwear after use. Cold gentle machine wash separately or hand wash with lukewarm water using mild detergent. Dry in shade.
For international orders outside of Australia, please see our shipping page for current rates.