Gradient lens tint means darkening by regular degrees. Most often gradient lenses are tinted from the top down, with the darkest portion of the lens protecting you most when you look up or when there is a risk of the sun shining in your eyes while you work. Our Gradient Safety Glasses are ideal for outdoor use, offering excellent protection from the sun. If you have any questions or need a product recommendation, do not hesitate to contact our customer support team on 020 7501 0594 or via our Contact Us page.