Special small model for smaller head sizes. Sport glasses with special “quick-snap” system which allows you to change the lens easily. 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.