Depending entirely on how good a worker you are, almost anything can be sewn by hand. Designers often start with a picture, so they can calculate the required

Depending entirely on how good a worker you are, almost anything can be sewn by hand. Designers often start with a picture, so they can calculate the required dimensions from measurements. There is a lot to learn about different cloths, their orientation in a garment and the way the garment "falls". There are often courses in garment design and construction available at technical colleges. These run anything up to 3 years (in New Zealand, my country) and end in a degree level qualification.