Jett jacket
Designer notes
It’s highly recommended to take another jacket you like and compare the shoulder-to-shoulder and waist- to-armpit measurements against it before you start cutting.
This pattern is intended to fit the widest possible range of bodies, so it comes with a couple optional adjustments under the Fit options.
The bust dart/full bust adjustment is intended for people with breasts. There are two implementations available, one based on horizontal and vertical shifts, one based on rotations like a full bust adjustment for a paper pattern. The rotation-based one is better and you should probably use it.
The full belly adjustment operates under the assumption that the waist measurement is taken around the fullest part of your belly. If the fullest part of your belly is below the place you took the waist measurement, don’t worry about changing the rest of the vertical measurements to account for it - Jett makes the adjustment all the way down to the hem.
The full belly adjustment only takes effect if your waist measurement + the given waist ease is wider than the ease the pattern is already generating around your stomach. If you turn it on, but don’t see anything change, it’s because the pattern has enough ease that you don’t need the adjustment.