Women’s Small shiny black leggings

These are super comfortable leggings that breath (they have a pleather sheen but are stretchy fabric). I bought them for a costume with a corset and they worked great, but are ultimately a bit too small for me to wear on the daily(I’m size 7/8). They say s/m, but I guess people are smaller in Berlin where I bought them. Would be awesome for someone Small or X-Small (ie size 6)!