These women's jeans are 98% cotton, 2% spandex. A little more room in the seat and thighs. They were prewashed and preshrunk so they run slightly small. For a tighter fit, order your regular size, for a looser fit order one size up. They were manufactured in San Franciso by the same production director who handled Levi's and Nike when they were in the US. You can't go wrong with these jeans!!!