... Nimes was made of silk and wool, but denim has always been made of cotton What we have here again, I think, is a relation between fabrics that is in name only, though both fabrics are a twill weave ... there also existed, at this same time, another fabric known as “jean.” Research on this textile indicates that it was a fustian - a cotton, linen and/or wool blend - and that the fustian of Genoa, ... difference: denim was made of one colored thread and one white thread; jean was woven of two threads of the same color Moving across the Atlantic, we find American textile mills starting on a small scale...