Day & Night Driving Glasses Prime Clip On Sunglasses are the best all round clip on’s you can buy. Wear them during the day for great sun protection and whilst driving at night to reduce headlight glare. They have a special filter that blocks the wavelengths of light that cause the dangerous glare from headlights. Boasting a Polarised filter also, together both filters produce unrivalled clarity and glare blocking properties. Lightweight and secure fitting to any frame type. Strong and superior construction in comparison to cheap clip ons. Panoramic view enables maximum eye protection. 100% Polarised protection against harmful glare.