Julbo Instinct Sunglasses

The Instinct Sunglasses by Julbo feature Julbo's exclusive photo chromic Zebra lens. This lens adapts to wide variations in light intensity - making it ideal for all day use. From early alpine starts to sunny Himalayan summits - the Zebra lens will meet your active needs no matter what the conditions. Zebra is a photochromic lens that adapts to variations in light intensity - with a wide protection range from category 2 to 4. It's activation time is quick with it reaching 50% of its capacity in a mere 28 seconds. From shadow to light - Zebra adapts without batting an eyelid to let you practice your favorite sport in complete freedom. Specifications: Zebra (Cat 2-4 lens*): Visible Light Reduction: Progressive UV Blocking: 100 % IR Blocking: 65 % Tint: Orange to Brown Composition: flexible lens *Lens Category: Category 0: Comfort or aesthetic use. Clear or slightly tinted. Category 1: Sunlight partially obscured. Slightly tinted. Category 2: Average sunlight. Medium tint. Category 3: Strong sunlight. Dark tint. Category 4: Exceptionally strong sunlight. Very dark tint. Not suitable for driving.