SIZE CONVERSION MADE EASY: Did you know Fantasie is sold in UK sizing? Please use the size chart to convert your US to UK size. To find your size, measure around the torso underneath the breast tissue to determine your band size. If measurement is an odd number, round up to the following even number. Measure around the fullest part of the bust to determine your bust size. To determine your cup size, subtract your band size from your bust size. Based on Fantasie most-loved style Fusion (FL3091). Three piece cup with side support offers uplift and forward projection. Wide wired for additional comfort and support. Delicate flat lace on cups and cradle. Top cup has elasticated edge for ease of fit at neckline. Tow back to give center pull through straps to help prevent strap slippage. Concealed seams in inner cup with seamless bottom cup for smooth finish under clothing. Fully adjustable shoulder straps.