This rounder, nerdier number has served as the calling card for generations of creative, thoughtful, free-spirited intellectuals and artistés — from Buddy Holly and Truman Capote to Johnny Depp. FEATURES: made from acetate with diamond rivets on the front and temples, a keyhole bridge, and a seven barrel hinge riveted through;Moscot’s real glass sunglass lenses precisely duplicate the true old school colors first dispensed by the company in the 1940s: G-15 (a grey/green color first created in the 1930s for pilots). 100% UV protection and scratch resistant; MEASUREMENTS: the Lemtosh Tortoise comes in 2 different frame sizes: MEDIUM lens diameter: 46 mm; bridge width: 24mm; temples lenght: 145mm LARGE lens diameter: 49mm; bridge width: 24mm; temples lenght: 140mm