Tifosi eyewear veloce fototec light night sunglassestifosi optics interchangeable sunglasses feature decentred shatterproof polycarbonate lenses to virtually eliminate distortion, give sharp peripheral vision, and offer 100% protection from harmful uva uvb rays, bugs, rocks, or whatever comes your way.lens installation removal is fast and easy. The light night lenses offer fototec technology and the widest range of transition. The colour neutral tint won't distort colours. The frame is made of grilamid tr 90, a homopolyamide nylon characterized by an extremely high alternative bending strength, low density, and high resistance to chemical and uv damage. Featuring hydrophilic rubber ear and nose pieces for a no slip fit, adjustable nose pieces for custom fit and vented lenses to improve air circulation and prevent fogging.  this frame is compatible with the veloce rx adaptor.features frame type open lens frame material grilamid tr 90 lenses decentred shatterproof polycarbonate, interchangeable, vented ear and nose pads adjustable weight 28 grams fit large, medium, small dimensions 150mm x 132mm rx compatibility veloce rx insert adaptorincludes bag and casenb fototec lenses transition less effectively when inside vehicles because the uv protection in the windshield impedes the process. Replacement lenses are not available for this model.technologies uva uvb all tifosi lenses provide 100% protection from all harmful uva uvb light rays. Polycarbonate lens tifosi lenses are all constructed from scratch resistant, shatterproof polycarbonate material. Vented lens vented lenses increase airflow to help prevent fogging to help keep you cool. Optically decentred optically decentred lenses eliminate distortion and prevent distracting magnification. Glare guard tifosis proprietary glare guard lens coating prevents unnecessary glare reduces eye strain and fatigue. Fototec fototec lenses with variable tint technology adjust rapidly to changing light conditions for superior clarity and protection. In bright sun, microscopic photochromic particles embedded in the lens react to uv rays, darkening the optics so youll never squint. With cloud cover, the particles return to their previous state, letting through more light. Tifosis fototec lenses are market leaders because of their lightweight, durability and incredible speed. All tifosi lenses offer 100% protection against harmful uva uvb rays. Rx technology tifosi offers a variety of solutions for prescription and aided vision sunglasses. The new veloce rx insert adaptor is a flexible lightweight option for sport rx glasses. The veloce rx insert adaptor provides a flexible and lightweight option for sport rx glasses without the ldquogoggle effectrdquo common to some other rx eyewear brands. Available for 6 base and 8 base lens types, the insert adaptor is also sold separately and can be retro fitted into any veloce frame.buy tifosi accessories from chain reaction cycles, the world's largest online bike store.