Aiyana's swimwear uses UK under band and cup sizes. They are made with the same expertise as bras. We currently offer cup sized swimwear in 16 sizes and are looking to expand our sizing offer! The table below displays our UK and international sizing conversions. Our pro tip is to start off with our easy- to use band size conversion chart followed by the cup chart.
Aiyana
UK
Europe
France
Aus/NZ
USA
Japan
28
28
60
70
6
28
60
30
30
65
75
8
30
65
32
32
70
80
10
32
70
34
34
75
85
12
34
75
36
36
80
90
14
36
80
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Aiyana
UK
Europe
France
Aus/NZ
USA
Japan
DD/E
DD-E
EF
EF
DD-E
DD-DDD
F-G
F/FE
F-FF
G-H
G-H
F-FF
DDDD/G-H
F-H-I
G/GG
G-GG
I-J
I-J
G-GG
I-J
J-K
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Aiyana
UK
Europe
France
Aus/NZ
USA
Japan
XS
XS
XS
XS
8
XS
S
S
S
S
S
10
S
M
M
M
M
M
12
M
L
L
L
L
L
14
L
LL
XL
XL
XL
XL
16
XL
3L
XXXL
XXXL
XXXXL
XXXXL
16
XL
3L
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If we do not stock your true size, you can find your alternative sister size. A sister size is a size that is different to your true bra size but is likely to fit you. The general rule is to go down in your band size and go up in a cup size or visa versa. For example, a size 36 F/FF is equivalent to our size 34 G/GG and 38 DD/E.
Alternative Sister Size
30 DD/E
32 DD/E
34 DD/E
36 DD/E
30 F/FF
32 F/FF
34 F/FF
36 F/FF
30 G/GG
32 G/GG
34 G/GG
36 F/FF
You can use our sister size chart to easily find your equivalent sister UK sizing. If needed, please use the international conversion chart to convert to your local sizing.
Finally, once you've found your perfect cup-sized top, we can help you find your bottom size using the conversion chart above.
Measure your ribcage in inches keeping the tape measure parallel to the floor.
Keep the measure snug but not tight.
If you find an uneven measurement, round up to the next even number. This is your band size.
2) Step 2- Bust
Wearing a non padded bra, measure the fullest part of your bust keeping the tape parallel to the floor.
Keep the tape snug to your body, making sure it doesn’t dig in.
Round up to a whole number.
Now subtract your band number from your bust number.
Difference
Cup Size
5" difference
DD cup
6" difference
E cup
7" difference
F cup
8" difference
FF cup
9" difference
G cup
10" difference
GG cup
DD
E
F
FF
G
GG
30
30DD/E
30F/FF
30G/GG
32
32DD/E
32F/FF
32G/GG
34
34DD/E
34F/FF
34G/GG
36
36DD/E
36F/FF
36G/GG
Adora Balconette Underwired Bikini Top – Bold, Supportive & Beautifully Structured Make a statement in the Adora Balconette Bikini Top, featuring a striking blue and yellow print that turns heads. Crafted from luxurious Italian swim fabric and triple-lined for maximum support, this underwired bikini top offers a thick, structured feel for all-day comfort and lift. Designed to enhance and support fuller busts, the Adora top combines bold style with functional fit; perfect for those seeking supportive, flattering swimwear with standout appeal.
Features
80% Nylon 20% Elastane
Soft adjustable shoulder straps
Underwired cups, no padding
Gold hardware
Double lined with inner mesh enforcements
No padding
Digital print
Hand wash cold, line dry
Fit & Size
Fit: True to size
Balconette style
Full coverage
Model 1 is a size 34 GG and is wearing our 34 G/GG
Model 2 is a size 30 DD and is wearing our 30 DD/E
Model 3 is a size 36 C and is wearing our 34 DD/E (sister size)