Most people use a flat sketch template or croquis template when drawing a flat sketch, particularly when using Illustrator for Fashion Design.
An accurate flat sketch will go into a fashion tech pack, which is a necessity for sampling and manufacturing.
The flat sketch should accurately reflect the overall silhouette, fit, design lines and construction of your design so that a pattern maker has a good idea (just by looking at the sketch) of what you want.
Watch how to use it to create a flat sketch in Illustrator.
The Croquis Template
The FREE Female Croquis Template
This fashion croquis template:
has front, back and side views
is correctly proportioned to draw a women's fashion design flat sketch
can be opened in Illustrator to create fashion flat sketches
This flat sketch template has been used over and over by my students at the Fashion Institute of Technology as well as for client projects. It's been tried and tested, and I still use it today.
Using Illustrator for Fashion Design?
Watch how to use the croquis template to create a fashion flat sketch.