Michael,

I bought mine at my eyeglasses store (prescription lenses). OK, so over the years they've collected thousands of dollars from me for a family of five that wears glasses but they made sure the ear pieces were the proper length and adjusted them and the nose pieces so they fit like a glove. When I mangle them up they adjust to fit again for free. They ought to, I paid enough (Ray-Ban's), and spending five minutes with you every couple of months is nothing, hey that's what they do for a living.

Most shops carry all the major brands and a few dollars above internet prices has been worth it in the long run.