Yes they are fabulous. Very high waisted (which I like) totally opaque, wash like a dream. Very cheap for what they are, unlike a lot of MV. Sizes used to be very generous but the last pair I bought (black, ruched ankle) were a little snugger than usual
I just bought some fantastic leggings in Matalan. Really thick, wide waistband, don't go baggy at the knees. Think they were £9 or thereabouts? (I also really rate their £4 longline vests, again really thick, lots of stretch, and lovely and long).