Multi-Standard EN397 - The European standard for Industrial safety helmets ANSI/ISea Z89.1 - American National Standard for Industrial Head Protection CSA Z94.1 - Industrial Protective Headwear - Performance, Selection Care and Use GB2811- China National Standard for Industrial Head Protection AS/NZS1801 - The Australian standard for Occupational Protective Helmets Textile Harness A 6 point Terylene cradle harness system & Egyptian cotton Chamlon™ sweat band offers unrivalled comfort. 3D adjustment offers 1-2-3 point harness depth settings for a perfect fit. Revolution® The Revolution® wheel ratchet has deep nape strap that enables the firmest retention of any helmet, with a simple turn fastening system. EVOSpec® Integrated eyeshield that removes the need for additional eye protection and ensures that eye protection is on hand when needed and never lost. EVOSpec® sold separately. Ventilation Side and rear ventilation for optimum air movement inside the shell, reducing helmet temperatures by an average 2-3 degrees, increasing the comfort for the wearer. CR2 Reflective CR2 is the biggest step-up in night time visibility / reflectivity of head protection to date. Conforms to Class R2, EN12899-1 3D Adjustment Both the textile and polyethelene harnesses feature unique 1-2-3 point harness depth settings. This offers the most precise fit attainable on an industrial safety helmet.