These are really lovely.  I do not usually buy the ones that need a garter belt, that is a little fussy for me.  But they were definitely well-received ;) and comfortable to wear.  On sizing, I was worried because at 125lb and 5'9" I was right on the line between sizes.  Went with the Medium and they fit perfectly.  They look great on long slender legs, and I do think they would also be forgiving and beautiful on a larger build, as there is no elastic at the top to squeeze you into unattractive configurations.