When it comes to patterns and sizing and fitting, it can be tricky. An important thing, I have learned, is pattern ease. Gertie, creator of the most wonderful retro patterns (!), has a great article written several years ago on just that – understanding pattern ease.
This helps me a lot as it assists me in knowing how a garment will really fit once it is completed. With so much to learn with pattern making, this article was great to come across!
A Learning Wife 