When you first try on a bra, it should be fastened on the loosest hook and eye. This allows you to tighten the band over time as the fabric slowly loosens. When it fits perfectly, the band of your bra should be taught but not too tight and should be horizontal with the floor, your straps should not be so tight that they are pulling the back of your band upwards. Shoulder straps should also be taught but not digging in and should not slip off the shoulders.
The center front of the bra should be flush with your chest in the middle. If you are seeing spillage either over the top of the cup or the underarm area, the next cup size up may be a better fit. If there is gapping in the cup, you may want to try a smaller cup size.
Bra fit differs between different fabrications and cuts. If the fit isn’t feeling perfect, we also recommend trying out your sister size. Please refer to our Sister Size chart in the question below for more information.