Glasses S.LITE 100%polycarbonate design. They offer complete protection against UVA and UVB rays preventing damage caused by the brightness, glare and wind. Very light highly resistant to impact. Lenses allow an additional 3 interchangeable colors (yellow, orange and transparent you). Dark: Ideal for winter days and protect against the sun light. Orange: In variable climates protect the change of light and shadow. Yellow: Protection in low conditions. Transparent.