Hind workout pants, super flattering amazing cut

Hind workout pants, super flattering and amazing cut (lol it looked like I finished my workout as soon as I put them on). They’re in great shape, despite the inside label wearing out. I don’t know the material is, but the black doesn’t fade or collect link like most do. Gray waist. They’re slightly long (I’m 5’8”), but I was able to wear them.