During the day long workshop you'll learn how to make a Clerical T-shirt. A jersey top that has a collar with a little 'pocket' to take the clerical collar. It has a zip up the back too to make sure you can pull on comfortably.
You will need about 1.5m jersey fabric for a long sleeved version or 1m for a sleeveless version and also an 8" invisible zip.
All the notions, thread etc you'll need will be provided for you.