The mask GMZ1 is made with quality materials to give the product a good value for money. The frame is molded in thermoplastic polyurethane non-toxic and non-allergenic and is very flexible to give the mask a good anatomical fit on the face of each athlete. The design of a visual field 180gradi. The perimeter of the frame is provided with ventilation holes that guarantee a perfect recycling of air inside the mask facilitate breathability without compromising visibility. the three waves solicone applied within the elastic give it a good grip to prevent movement of the mask during use. the material used for making the absorbent foam is a single density and guarantees a great comfort. The lens provided in the standard configuration is transparent and is produced Lexan polycarbonate, with a special antifog treatment inside and outside antiscratch.