Sizing for the Miri Tank sewing pattern (Multiple cup sizes!!)
This beginner-friendly pattern is drafted for sizes 0-32 and includes three cup size options for all sizes. I think one of the biggest obstacles with fitting is the cup size and figuring out an SBA or FBA. I didn't want beginners to have to go through that so I decided to include multiple cup sizes with this pattern. You can choose from an A/B cup, C/D cup or E/F cup for a customized fit through the bust. I decided to do all three cup sizes for all sizes because I had a hunch that our bodies really differ a lot and that there would be people that would need all those options. I was pleased when looking at tester applications to see that my hunch was true. (Phew! :) So, even if you are a size 2 with an E/F cup or a size 28 with an A/B cup, you will find your size included in the pattern.
I would have loved to do a pattern for each cup size (as in A cup, B cup, C cup, etc) but it really would have been too many pattern pieces to handle. As it is, doing three cup sizes was almost three times as much work. So, while this was a fairly easy pattern to draft, doing all the sizes was really a massive task. In total, there are 51 sizes for you to choose from!
When selecting your size, you'll start by finding the size closest to your high bust measurement (it's ok to round up or down). Then go down that column to find the measurement that most closely matches your full bust (again, it's ok to round up or down). The pattern instructions have additional information on how to select your size.
If you're interested in the technical bit of what exactly an A/B cup is, let me tell you. So, in the world of pattern drafting, the bust cup is determined by the difference between the high bust measurement and the full bust measurement. A 1" difference is an A cup, 2" difference is a B cup, 3" is a C cup, etc. The A/B cup is drafted to be right in between a sewing A-cup and a sewing B-cup–a 1.5" difference between the high bust and full bust. During testing, I was pleased to find that these in-between cups really worked well.
You can learn more about our size charts here.