Special small model for smaller head sizes. Sport glasses with special “quick-snap” system which allows you to change the lens easily. Polycarbonate photochromic lenses. These lenses have a light transmission of 85-17%. The brighter the light, the darker the lens automatically becomes. One lens provides you with category 1, 2 and 3 levels of eye protection. Interchangeable polycarbonate lenses with special air flow system. Soft touch temple tips for a firm fit and comfortable wear. Lens shape gives protection against sunlight, dust and wind. Block system prevents the temple tips damage the lenses while folded inwards. High-end Grilamid frame with adjustable rubber nose piece.