To get the most accurate top bust measurement, measure with a well fitting bra on, an underwire can be the best here as it gives you the most lift, but must not have any padding or foam. So with this comfortable and well fitting bra (as you own), and standing on even surface, measure you top-bust. 

I have allowed for ease (space to breath) in the designs, so you don't need to allow for a relaxed fit. Just get the accurate measurement of your chest. 

1. UNDER-BUST

Your UNDER-BUST is where the band of your bra fits around your ribcage.

This is the number part of a bra size, 8, 10, 12, 14, 16, 18 (= band size)

2. OVER-BUST

Your OVER-BUST measurement is the fullness of your breasts.

This is the LETTER part of a bra size, A, B, C, D, E, F, G (= cup size) 

Siane Extra Full Cup Sizing Chart

SIZING IMAGE FOR LARGE CUPS

Start with your bra band size and the bottom row of our chart you will find your ECO size. You will find references to both Australian and International bra sizes:

Sizing:

YOUR SIZE: CHOOSE Siane Xtra IN SIZE: 
30/8 E, F & G cups  XS
30/8 G CUP  S +(band altered to a XS)
32/10   E & F CUPS  S
32/10 G CUP M +  (band altered to a S)
34/12   CUP M
34/12 F CUP L +   (band altered to a M)
34/12 G CUP XL +   (band altered to a M)
36/14 E CUP L
36/14 F CUP XL +   (band altered to a L)
36/14 G CUP 2XL +   (band altered to a L)
38/16 E CUP XL
38/16 F CUP 2XL +   (band altered to a XL)
38/16 G CUP COMING SOON
40/18 E CUP 2XL
40/18 F CUP COMING SOON
40/18 G CUP COMING SOON

To calculate both your cup & band size you can go HERE to work this out.

Simple

2 Measurements

For all our Crops, Bralettes and Bra styles you only need 2 measurements: your UNDER-BUST and OVER-BUST and all you need is a tape measure to calculate these.

Contact Madonna

I am so happy to assist with this process so message me in the chat or here with you UNDER-BUST and OVER-BUST and I will let you know your best size. 

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.