ELECTRICAL PROTECTION: Features an unventilated outer shell that meets ANSI Z89.1 Type I Class E standards, protecting against electrical hazards, molten metal splash, and flames. DUAL CHINSTRAP: The innovative adjustable chinstrap allows you to switch between high strength for work at height (limiting risk of loss) and lower strength for ground work (limiting risk of strangulation). SUPERIOR COMFORT: Equipped with a six-point textile suspension that conforms to the shape of the head and the FLIP&FIT system that folds the headband into the shell for storage. CENTERFIT ADJUSTMENT: Two side adjustment wheels allow you to easily center the helmet on your head for a stable, secure fit, even while wearing gloves. MODULAR ACCESSORIES: Fully compatible with Petzl accessories including PIXA/DUO headlamps, VIZIR face shields, and standard hearing protection (via side slots).