5550 Thintanium Eyeglasses by Lindberg. Color: 05, 10, 20, 30, 60, 70, 75, 77, 80, 85, 90, 107, 113, 117, GT, U12, U13, U14, U15, Size: 48-18-140, Temple: Classic. Straight-lined and assertive, 5550’s square frames are sculpted from thintanium, fusing bold style with minimal presence. The angular design is softened by gentle curves where temples meet the rim, ensuring movement remains smooth. Their hidden hinge design gives an uninterrupted silhouette. Distinctive while featherlight, they anchor your look without overwhelming.