5542 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: 54-17-140, Temple: Classic. Minimalism meets structure in the 5542 frame by LINDBERG: ultra-thin yet resilient titanium forms a subtle rectangular silhouette. Every edge is precision-milled, offering a lightweight feel that’s virtually invisible on the face. The spring-hinged temples adapt to facial shape seamlessly. With its understated elegance, this style transitions effortlessly from office to weekend.