Specially designed for working at height Electrical insulation up to 1000Vac or 1500Vdc (EN 50365) Unvented helmet shell for safe use with electrical applications 6-point textile suspension harness for enhanced wearer comfort and safety Size adjustable headband via wheel ratchet system Chin strap included Up to 7 years lifetime from manufacturing date (as long as undamaged) Compatible with PW47 and PS47 clip-on ear muff Compatible with PS58 helmet visor holder Light and robust Hi-Visibility colour for visibility in daylight CE certified CE-CAT III EN 397 -30°C/+50°C EN 50365 Class:0