Cheap Look Alike Sunglasses: You Get What You Pay For
Most lenses today Sunglasses frames are made of very hard materials and high quality, which makes them resistant to scratches and breakage. Two materials are polycarbonate and CR-39 plastic. Lenses undergo rigorous testing to ensure compliance with the standards set by the Organization of the United States and Drug Administration (FDA) and the American National Standards Institute (ANSI) or at least the lens manufactured and sold in U.S. - before entering the market. imitation sunglasses are usually made of cheap plastic and can only be broken if struck.
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02-10-2011, 01:13 PM
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