Sunglasses Transitional Photochromic Driving Men's Sunglasses Shades resin frame photochromatic lens non-polarized Lens width: 6.1 cm Sunglasses with polarized and Photochromic lenses,adjusting according to the amount of light.Light brighter,lenses darker,lenses clear as the day fades to night.Better protecting your eyes and make your sight clearer. Lenses Optical Attribute: Photochromic Frame Material: Alloy Frame Color: Gray Lens Width: 6.1 cm Lenses Material: Polycarbonate Lens Height: 3.9 cm Lenses Color: Smoke Lenses Material: Resin Style: Aviator Frame Material: Metal