Size conversion made easy: Did you know that Freya is sold in UK sizes. Please use the size chart to convert your US size to UK size. To find your size, measure the circumference around the upper body below the chest tissue to determine your underbust circumference. If the measurement is an odd number, round to the following even number on measure around the furthest point around your bust. cup size, subtract your underbust circumference from your bust size Lightweight, molded cups made of breathable spacer fabric Firm hold: mid-high performance with mid-rise neckline Wide underwire for a comfortable, supportive fit Padded straps for comfort and support Firm, flat underbust band for good anchorage