Petzl VERTEX VENT ANSI Helmet with Notch Hookups & SENA Comms

The Petzl VERTEX VENT helmet uses a six-point textile suspension with CENTERFIT and FLIP&FIT systems for a secure, comfortable fit, and its adjustable-strength chinstrap suits both work at height and on the ground. Ventilation holes with sliding shutters let you adjust airflow. It fits head circumferences of 53-63 cm, weighs 490 g, and is certified CE EN 397 and EN 12492 and compliant with ANSI Z89.1 Type I Class C. This kit pairs the helmet with Notch hookups and a SENA communication system, as listed in the product options.