I really love this product. It provides UVA and UVB protection as well as foreign object protection. I wear them constantly out doors and driving. I especially like the way it highlights greens and reds. It makes real life colors even more so. It provides just enough shading for those bright days and brightens things in dimmer light as well. They DO scratch easily so care must be taken not to drop or mar them. That is why I ordered two shields as I am rough on them. Too bad they aren't coated on the inside so they would be tougher.