Definition of "jeaned"

Is there no way to prove to them that woollen-shirted, brown-jeaned simplicity is infinitely better than broad-clothed degradation?

1902, Paul Laurence Dunbar, chapter 15, in The Sport of the Gods‎, New York: Dodd, Mead & Co, pages 212–213

It is the merry jest of visiting urbanites to hail the blue-jeaned farmer as “Hiram” and ask with grotesque nasal whining after the welfare of his crops.

1937, Frederic Franklyn Van de Water, chapter 8, in A Home in the Country, page 153

The audience was made up almost entirely of international youth, bearded and jeaned and unwashed.

1980, Anthony Burgess, chapter 79, in Earthly Powers, London: Hutchinson