I'm 46 and I freaking love mine! They're leather on the front and regular leggings material (cotton or rayon or something, I forget) on the back and they make me feel so awesome! I don't wear them as much this year since we moved, and i really should because YOLO. Mine came from Nordstrom a few years ago, so I don't know where to send you for a similar pair. I also have two pairs of faux suede leggings that I love, both came from yoox but other dabbers turned up quite a few options in some recent discussion.
I do wear them with longer length tops (like mid thigh) though, because I haven't been comfortable with wearing "leggings as pants" since 20+ years ago LOL