Metal frames make these the best purchase.  Had a pair of SHOOTER, whatever the name was plastic version of this style and they pissed me off everyday because the lenses would literally fall out if you sneezed.  I don't like to leave bad reviews so I will say don't by any other garbage frames of this style.  This metal framed Badman pair of glasses will last me long enough for me to ACTUALLY get my monies worth.  And it comes with a hard storage case.