Bolle's Envy sunglasses have True Neutral Smoke (TNS) lenses that provide truer color definition than ordinary lenses, and are polarized to block squint-inducing glare from snow, water and roads. Lenses: Polarized to reduce glare 100% UV protection Material: Polycarbonate 57 mm width Frames: Material: Composite 5??? temple to temple CLOSEOUTS . Italy. Visit our Sunglasses Guide Available Colors: MECHANICAL BRONZE W/ POLARIZED TNS GUNMETAL LENS.