Giorgio Armani Collezioni black tuxedo dress pants for men, size 40 waist and 33 inseam. Made in Italy with a formal button closure, pleated front, and zipper accents. These regular-fit pants feature a straight leg style and are suitable for formal occasions. The pants are solid black in color and have pockets for added convenience. Ideal for winter, summer, fall, and spring seasons, they require dry cleaning for garment care.

Missing materials tag but based on similar items and the material quality, I would guess they are wool or a wool blend.