Cool, sleek, and timeless — that's the look we were going for when we designed the BENSON line. Translucent amber, clear, tortoiseshell, or black frames with metal rivets make for enduring style that flatters more every face. polycarbonate lenses 100% UVA and UVB Protection handmade using acetate material triple-barrel hinges RX optical quality FIT INFORMATION 49mm eye size 23mm bridge 145mm temple/arm Width 5 3/8 inches Height 1 3/4 inches