NWOT Trending Black zipper styled yoga like pants

Super popular, yoga-like, pants with real zippers. Area near the ankle is scrunched up, also has an addition piece of material on the thigh/knee area that has a stripe like pattern. Size says Large but fits more like Sm/med. Wear them w/the zipper by the knee open & it appears to have a tear in the pants. Material is very soft and has a slippery texture to them. I am hoping these go to a girl who can rock these brand new, very trendy pants out