Inexpensive, cheaply made, heavier than & not as comfortable as I wanted.  But the main reason I bought them is, on really hot days, my plastic horn-rim sunglasses block air flow to my face so that my forehead drips sweat down into my eyes, which is not only uncomfortable but, while driving, is dangerous.  These are better on those really hot days.  Also, the thin temple pieces above my eye line don't block my lateral vision.  When folded, the tips of the temple pieces touch the interior of the lenses & are bound to scratch them.  At &#60;$10, I'll be satisfied if they last one season