These nylons are wonderful.  They last quite a while for being so sheer and thin.  They stay up well without putting any pressure on your leg or in denting it in with elastic just silicone around the lace on the inside keeps them up.  They also stretch out very nice without running. Most of the time I pull them up covering my entire leg (I am 5' 4" so keep that in mind when I say that).  I am back to buy my third pair.