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Please view our Size Guide + Style Guide for further information.
COSSIE+CO sizing is very simple - swimsuits are sized 1 to 5. Below is a conversion chart with comparable sizing. Not all styles are available in all sizes. If you have any questions feel free to email us at cossie.help@cossieandco.com
Those with a fuller bust or long torso may wish to take one size up.
Our one piece measurements are taken from the neckline to the gusset.
THE POPPY (regular length)
THE POPPY (longer length)
THE MILLY
THE ASHLEY
THE LAURA
(please note this style has adjustable straps)
THE EDIE