Why They're CoolTweak the omni-adjustable nosepiece and wire-core temples on the rad Ketyums and achieve new personal bestsin speed, daring, whatever. » The temples and frames are fashioned from a proprietary metal alloy, jointed over the eyebrows to allow for flex. » The mirrored copper poly lenses have an anti-mirror coating on the eyeball side, killing interior reflection.Hmmm . . .You'll need less jockish shades for the street.RX-ABLE?Have your lab grind lenses for inserts ($60) that snap into the nosepiece.