Petzl's Strato Vent Hi-Viz high visibility work and rescue helmet is light and comfortable, characterized by an inner shell, structured in two parts (expanded polypropylene and expanded polystyrene, EPP and EPS) and an outer shell in fluorescent color equipped with of clips and reflective bands. Strato Vent Hi-Viz has been designed to guarantee maximum visibility to the worker, both day and night. Strato Vent Hi-Viz has two super innovative and practical systems: Centerfit and Flip & Fit. Let's see in detail what these two technologies consist of, which combined together guarantee an unbeatable hold. Centerfit adjustment takes place by operating the two side wheels. The system is easy and fast and allows the helmet to always remain well centered on the head. The Flip & Fit system instead allows a low headband position to improve the helmet's hold. The system fits inside the helmet to facilitate storage and transport. Strato Vent Hi-Viz has interchangeable foam padding, Dual chinstrap that allows the worker to modify the resistance of the chinstrap to adapt the helmet to different environments: work at height (EN 12492) and work on the ground (EN 397), holes of ventilation. Modularity is another clever aspect of this helmet, allowing it to adapt to various professional activities. Strato Vent Hi-Viz is compatible with various accessories: the visor that you can install using the two special lateral attachments, headlamp to attach to the four clips, chinstrap and interchangeable padding, hook for ear muffs, neck protector, badge holder. The helmet is available in one size adjustable from 53 to 63 cm. Instructions. Petzl Strato Vent Hi-Viz helmet for work at height and rescue