With their cat 4 lenses, these glasses offer great glare protection, to the point of not being recommended for road traffic use. This model is right at home in water sports and other activities where the sun hits your eyes both directly and as a reflection from the ground/snow/water. - Lens: Spectron cat4 lens, visible light permeability 5% - Basic lens color: brown - The inner surface of the lens has an anti reflection treatment - Shaped Grip Tech pads on the temples - Air Flow ventilation - Flexible nose pad - Removable side guards - Regular size: - Lens Height (mm) : 45 - Bridge Distance (mm) : 17 - Temple Length (mm) : 130 - Base : 6 - Lens Size (mm) : 59 Julbo has been making sunglasses for more than 135 years. By buying Julbo, you are investing in a quality product and can rest assured the glasses offer perfect UV protection.