You'd never run in a pair of running trainers size medium, so we don't think that should be good enough for your swim, either.

Our signature Muse Measurement sizing system is designed with female body shape in mind.

As well as selecting a piece based on your dress size, we invite you to select your ‘Muse Measurement’ based on your bust size:

The Hepburn

for AA-B cup

The Monroe

for C-E cup

The Hendricks

for F-HH cup