I cannot find any fabric or sizing tags on these. They are in beautiful shape. The front legs are line with a satin material.

This product is a pair of Yves

Saint Laurent vintage khaki roll cuff women's pants with a 29" waist and 32" inseam. The pants feature a high rise and a straight leg style with a pleated front design. Made from a blend of polyester and rayon, the pants have a zip, hook & loop, and button closure. Perfect for a variety of occasions including parties, formal events, work, and business, these dress pants also have pockets and are designed for all seasons. With a retro theme and French origin, these pants offer a touch of luxury to any wardrobe.