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Sirene Bikinis Size Guide

Choosing the perfect bikini top starts with knowing your measurements — and your personal preference.

Need help? Just send us your underbust measurement and usual cup size — and we’ll recommend your perfect Sirene fit. ✨

1. Measure Your Underbust (Band Size)

Wrap a measuring tape snugly around your ribcage, just under your bust.
📍 Round to the nearest whole number in centimeters (e.g. 70, 75, 80, 85).
This number is your band size.

3. Choose Based on Personal Fit

Your Sirene top is designed to adapt beautifully — so let your comfort guide you:

  • 💫 Prefer a tighter and more lifted fit?
    → Choose the smaller size

  • 🌬 Prefer a softer, more relaxed feel?
    → Choose the larger size

2. Identify the Cup Size You Normally Wear

Check the cup size from your current bra — A, B, C, D, or DD/E.
If you’re between two cup sizes, pick the one you usually feel most comfortable in.

💛 Example:

If you wear a 75C and like a snug fit → go for size S
If you wear a 75C and like it more relaxed → try size M

Need help? Just send us your underbust measurement and usual cup size — and we’ll recommend your perfect Sirene fit. ✨

Bikini Tops – Size Guide (EU Bra Sizes)

EU Bra Size

A-Cup

B-Cup

C-Cup

D-Cup

DD / E-Cup

XS
XS
S

M

L

XL

70 (32)
75 (34)
80 (36)
85 (38)

90 (40​

95-100+

XS
S
M

M

L

XL

S
S
M

M

XL

XXL

S
M
M

L

XL

XXL

M
M
L

L

XL

XXL

Bikini Bottoms – Size Guide

EU Clothing Size

Hip Measurement

Recommended Size

84-88 cm
89-93 cm
94-98 cm

99-103 cm

104-109 cm

110+cm

32-34
36
38
40

42-44​

46+

XS
S
M

L

XL

XXL

Not sure?

Don’t worry! Contact us via chat or email and we’ll help you find the perfect fit.
And remember: all returns and exchanges are hassle-free. 💛

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