Brown lenses are good for all-around use. Brown offers the best depth perception of any colored lenses, and so they are recommend for sporting activities and generally better visual acuity. If you are on the water or in very bright light situations, you should go for the 80% grey lens tint density lenses. Choose a gradient brown tint for fashion, or to make it easier to ready at the beach while still blocking the sun's bright rays. This item must be added to a lens order: it is only available as an add-on to a lens order; it is not available without a lens order.