ULTRA-LIGHTWEIGHT: Weighs only 415g thanks to a hybrid EPP (expanded polypropylene) and EPS (expanded polystyrene) foam liner that absorbs impact without the weight of traditional suspensions. MAXIMUM VENTILATION: Features large ventilation holes on the sides of the shell to allow substantial airflow, keeping the head cool in hot working environments. 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). CENTERFIT & FLIP&FIT: Dual side wheels allow for perfect centering on the head, while the headband folds into the shell for compact storage and protection during transport. MODULAR ACCESSORIES: Fully compatible with Petzl accessories including PIXA/DUO headlamps, VIZIR face shields, and standard hearing protection (via side slots).