Get tinted sunglasses with 100% UV protection. Protect your eyes from the sun and UV damage. Gradient-tint ens coatings start as dark tint at the top of a ens and then proaressively lighten toward its botom.The result is a pair of shades that offer you sun protection and privacy, but offer you varying degrees of light. Gradient tint can only be applied to lenses for frames above 36mm in height.