I bought these to wear with boots that are a little snug.  I like the fact that they are thin, and especially that the seam is not over the top of your toes, but rather further down, across the tips of your toes. So if your shoes or boots are pressing down, the seam is not painful or annoying.  The elasticity is not great; they get a little baggy when you wear them all day.  But overall for the price I paid (I paid about $11 for the 3 pairs, now I see that the price has gone up to $15) I am happy with these.