FRAME: the Bertoni Prescription Sport Sunglasses 399 is made in 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 - any strength friendly – Your optician can easily assemble your prescription to the clip – Prescription sport sunglasses for Cycling MTB Tennis Motorbike Etc.
LENS: coming with one pair of photochromic polarized lenses from light smoke filter 2 to grey filter 3 - it adjusts to the brightness. Polarized lenses: reduce reflections of horizontal surfaces. This lens combines both polarizing and photochromatic features - 100% UV Protection
INTERCHANGEABLES arms with elastic adjustable strap to have a very skin tight fitting making sports - The inside of the front frame is covered with a removable windproof soft foam for a comfortable fitting, specially when used with the strap - ADJUSTABLE NOSEPAD Soft Adjustable nosepad offers an exceptional fit for any shape of face. This system also allows to adjust the glasses’ height and their distance from the face to prevent misting.
WRAPAROUND DESIGN: protects the eyes from wind and bad weather, provide enhanced peripheral vision - Size: suitable for all types of faces (narrow to large) - Perfect for Cycling Running Ski Extreme Sports Football - VIDEO TUTORIAL available here on the left