Three-time Oscar winner Colleen Atwood designed the costumes for Snow White and the Huntsman. They assembled our scales and rings - 16g 5/16" stainless steel rings and small blackened stainless scales.
There are lots of interview videos with Colleen Atwood on the costume design
3:30 on shows the rings used for chainmail shirts and coif
3:45 shows a scale neck drape
1:53 shows scale armor