Prepare for Lift-Off! The Zero Gravity Pit Vipers with Flip-Up Technology(TM) AND Dual Lens Technology(TM). Lift-off in light seconds so you can attend to important metagalactic matters. Stats: UVA & UVB Protection: 100% Light Transmission: 14% Look Thru Color: Brown Lens: 2.2mm Polycarbonate Rx Insert-Compatible What&';s in the Box - 1 Firm case - 1 Limp cloth Size Guide: Frame Height a 5.66in (Merika) a 144mm (Metric) Frame Width a 5.66in (Merika) a 144mm (Metric) Nose Opening a 1.31in (Merika) a 33.5mm (Metric)