These are made out of a newly developed Stevenson black warp and black weft 12oz  Japanese selvedge denim then factory rinsed to get rid of most of the shrinking properties of the fabric then single-needle stitched throughout. The denim used on this jean is an original fabric developed by Stevenson Overall Company for their line of jeans and woven by Okayama's famed Kuroki denim mill. Even the thread used is developed for their jeans by Okayama's oldest thread producing factory, from the outside it looks and ages like a 100% cotton thread but is strong so that the jean lasts for a longer period of time. The entire jean is single needle sewn which is nearly unheard of on a jean in this price range, it's truly a work of art to see. Stevenson 150 Encinitas Jeans - Classic Straight Leg Black