Once you’ve chosen the range it’s time to get the size right. If you can, take a look in her lingerie drawer, check labels and note down a bra and coordinate size. For a bra that will be a number and a letter (e.g. 32E) and for coordinates this will either be XS to 2XL or a number referring to dress size (e.g. size 10). Our coordinates come in an XS to 2XL so take a look at our guide if you need to convert a dress size.