Photochromic Cycling Sunglasses for Prescription Lenses F399A

Photochromic Cycling Prescription Glasses and Goggles – Removable Clip for Pescription Lenses - Interchangeable Arms and Strap – F399A by Bertoni Italy: Frame: mat black anticrash polycarbonate - thanks to their excellent grip at arms, at the adjustable nose pads and moreover with the elastic strap,  this sunglasses will stay in place. Included a Removable Optical Insert for Prescription lenses - any strength friendly – Your optician can easily assemble your prescription lenses to the clip. Sunsensor NEW Sunsensor Photochromic Antifog Lens from cat 0 to 3: Innovative Technology , react consistently to light and UV rays - they darken from category 0 transparent (indoor, foggy days, bad weather) to grey category 3 sun tint (outdoors, high brightness), this lens adapts itself to changes in light - Made in Shatterproof PC 2.2mm Antifog Anticrash - 100% UV Protection - Wide peripheral vision. Lenses are decentered in order to avoid any optical distorsion. Interchangeables arms with elastic adjustable strap to have a very skin tight fitting making sports - black hot printing logo. The inside of the front frame is covered with a removable windproof soft foam for a comfortable fitting, specially when used with the strap. Wraparound design: protects the eyes from wind and bad weather, provide enhanced peripheral vision - Size: suitable for all types of faces (narrow to large).