Non-slip bridge Anti-static Lightweight At an incredibly lightweight?.74 oz of strength, the Contour?is?sturdy, protective, stylish, and?comfortable. CONTOUR is one of the top three best-selling models and is available is 5 lens options.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }