2540 Glasses by Lindberg. Color: 10, 20, 25, 30, 35, 60, 70, 75, 77, 80, 85, 90, 95, GT, U12, U13, U16, U9, Size: 54, 56, 58, Bridge: 22, Temple Length: 145, Temple Design: Basic. A versatile option for daily wear that never looks dull, the LINDBERG's model 2540 brings balance to square and round with a lens that bridges both forms. Constructed from fine titanium, it’s impressively light yet holds its own in style. The bridge placement gives it a contemporary edge.