Durable and comfortable helmet, meets requirements for work at height. * Chinstrap designed to reduce the risk of the helmet coming off as a result of an impact during a fall : it has a breaking strength greater than 50 daN (EN 12 492 mountaineering helmet standard). * Polycarbonate shell, resistant to impact and wear (meets EN 397 industrial helmet standard and EN 12492 standard). * Meets all optional requirements of the EN 397 standard: * lateral deformation, * use at low temperatures (down to - 30 °C), * electrical insulation, * molten metal splash. * Customizable: * side slots for mounting hearing and/or eye protection, * the cut of the shell contours over the ears to fit standard hearing protection, * four headlamp clips. * Complete and simple adjustment: * single headband size adjustment wheel, quick and precise to manipulate even while wearing gloves, * height adjustment of the headband to adjust the position of the straps on the neck, * chinstrap buckles can be adjusted forwards and backwards. * Comfortable: * webbing suspension system, * thick, replaceable foam headband. * The headband retracts into the shell for storage.