Safety helmet for work at height, industrial activities and building construction. Lightweight helmet, comfortable and well ventilated with wheel adjustment system. Chinstrap designed to open in the event of suspension and prevent choking: it opens between 15 and 25 daN (conform to CE EN 397 standard). Size adjustment wheel easily workable even with gloves on. Shell with ventilation holes. Clips for mounting headlamps. Pre-drilled holes for the installation of the visor and ear muffs and radio. Internal webbing suspension system with removable and washable padding. Available in various colors (white, yellow, red, black and high visibility) also with special rubberized black finishing "Soft Touch". HV version (high visibility) in yellow fluo with reflective stickers. Reflective versions dedicated to medical emergency and pubblic assistance, in red or white with reflective stickers for night visibility.