One-lens, innovative and elegant design. Style comes from industrial design, which blends style, simplicity and practicality. The result is a reliable product. Maximum visual performances. Structure of frontal lens is computer-generated to obtain the maximum peripheral vision. Tempered glass meets DIN-ANSI regulations. High flexible silicone strap adjusts quickly. Adjusting straps is of highly flexible silicone. Quick adjusting is simplified by means of two pivoting "quick-adjust" side buckles.