First at Sunglass Hut - Silver Alloy Frame with a Fire Lens. With durable Plutonite lens material and sturdy C-5 alloy, the bottom line on impact protection is that it needs no bottom line. So we invented a bottomless frame that expands your vertical view while still surpassing ANSI standards for high-velocity and high-mass impact resistance. Rendered with 150 tons of pressure and machined with the precision of Computer Numeric Control, the monolithic backbone of lightweight C-5 alloy is raked back to liberate peripheral vision. Custom engineered spring hinges and dual sizes of Unobtainium nosebombs offer the comfort of a custom fit, and patented XYZ Optics opens the boundary of lateral clarity...