Inzert featuring tinted polarized non-prescription Vizsure Polycarbonate ophthalmic grade lenses for brightness reduction and glare elimination in sunny conditions. Hardwearing yet lightweight TR90 black PRO polymer frame easily snaps in and out of any Sportviz core. Ffreedom® Anti-Fog treated lenses remain fog free for up to a year and sit the same distance from your eyes as standard sunglasses for maximum field of vision. Includes cleaning cloth and hardshell case.