Ultra-comfortable and technical, Tracker provides protection from all mechanical risks and also chemical risks, making it unique in the safety glasses range.Features and Benefits• Upper protection• Removable foam reinforcement with indirect ventilation• Lower protection• Removable adjustable strap• Side ventilation• 52gProtection:Chemical risk - Large dust particles - 4Chemical protection against large dust particles> 5 microns. Goggles mandatoryChemical risk - Liquid droplets - 3 (Goggle, adapted spectacles with strap or face shield mandatory)Chemical protec tion against liquid droplets or splashes. Goggles, adapted spectacles with strap or face shield mandatory.Mechanical risk - Low energy impact - FLow energy impact, resists a 6 mm, 0.86 g ball at 45 m/sMechanical risk- High speed particles at extreme temperatures - TThe letter T, immediately after the mechanical strength symbol, authorises use for high speed particles at extreme temperatures.Mechanical risk- Medium energy impact -