---
title: 'Bust adjustment'
---
If the pattern should be drafted with a basic full bust adjustment (FBA).
This will result in a more fitted garment for people with breasts.
If you don't enable this option, Bibi will essentially be drafted
for a body without breasts that has the same chest circumference as
your body with breasts. For people with breasts, this will cause a
bunch of extra fabric at the chest and armholes that will make the
top look like a poor fit.
There is usually no need to disable this option. It will have little effect on people
with smaller busts or no breasts.
:::note
When the optional bust related measurements are not available, no FBA will be performed and this option has no effect.
:::
