Our PETZL® VERTEX helmet is very comfortable, the adjustable-strength chinstrap makes it ideal for both work at height and on the ground. With the ability to integrate a PETZL® headlamp, face shield, hearing protection, and multiple accessories, it is an entirely modular helmet, meeting the additional needs of professionals Comfort: - Six-point textile suspension adapts perfectly to the shape of the head - CENTERFIT feature allows you to center the helmet on the head using the two side adjustment wheels - FLIP and FIT system allows the headband to be positioned low on the head and offers a secure fit; the system folds into the shell for easy storage and transport - Comes with interchangeable standard comfort foam Protection designed for work at height and on the ground: -DUAL chinstrap allows the worker to adjust chinstrap strength in order to adapt the helmet to different environments: work at height (EN 12492) or on the ground (EN 397) The clip has two positions corresponding to two different uses: high strength to limit the risk of losing the helmet during a fall, and low strength to limit the risk of strangulation if the helmet is snagged while the user is on the ground- Shock absorption achieved through deformation of the outer shell - Unventilated outer shell protects against electrical hazards, molten metal splash, and flames Modular accessories: - Eye shield with EASYCLIP side attachment system for easy installation - PETZL® headlamp using mounts, or other headlamp using the elastic headband - Helmet protector keeps the shell free from soiling and paint splash - Nape protector provides effective sun and rain protection for the nape of the neck - Nametag holder allows user to be easily identified - Interchangeable chinstrap and foam - Hearing protection (1) - Available in seven colors: white, yellow, red, black, orange, blue, and green(1) The integrated hearing protection is not compatible with the CSA standard Head circumference: 53-63 cm Weight: 510 g Material(s): ABS (acrylonitrile butadiene styrene), nylon, polycarbonate, high-density polyester, polyethylene Certification(s): CSA Z94.1 Type I Class E, ANSI Z89.1 Type I Class E, CE, EN 397, EN 12492 (1), EN 50365, EAC (1) Meets all requirements of the EN 12492 standard, except the ventilation requirement